Results for

Manufacturer Producer - Instrument calibration

41 Companies

13 Products

RDS BV

Belgium

The company RDS BV, is a Multi-Category, which operates in the Weighbridges industry. It also operates in the instrument calibration, weighing machines, scales for weighing machines, and lighting industries. It is based in Harelbeke, Belgium.
MULTI SYS SARL

France

The company MULTI SYS SARL, is a Manufacturer/ Producer, which operates in the Scientific equipment and instruments industry. It also operates in the biomedical, instrument calibration, and e-commerce industries. It is based in Toulouse, France.
KELLER PRESSURE

Switzerland

KELLER – A market leader in the production of isolated pressure transducers and transmitters KELLER Pressure was established in 1974 by Hannes W. Keller, the inventor of the integrated silicon measuring cell. Today, his sons Tobias and Michael Keller run the business. The company is wholly family-owned and employs 480 staff. KELLER feels a strong connection to its home of Switzerland. Its headquarters are where the value is added and where most of our employees work. As a result, all KELLER products bear the quality seal 'Made in Switzerland' and embody the Swiss values of quality, functionality and reliability. KELLER Druckmesstechnik AG, including KELLER Gesellschaft für Druckmesstechnik mbH in Jestetten, is certified to ISO 9001. This means that our measured values can be fully traced to national standards. As a company that operates on an international scale, KELLER is represented at a number of locations around the globe. Because we are committed to offering the best service to our customers, you will always receive advice in your local language. KELLER has ten branches in Europe, Asia, South America and the USA. Various representatives and distributors also support our branches in other countries.

All the products for "instrument calibration"

LPX

HPX

MPX

Conductivity Calibration Tool

Website See all products
KIGEMA SP. Z.O.O

Poland

We are a team of engineers, technicians and top-class experts with 30 years of experience in casting and machining. Our goal is to build long-term cooperation and relationship based on reciprocal respect and we want to be the 1st choice supplier we strive to provide competitively priced high-quality products and services. KIGEMA specializes in centrifugal casting for the production of bushes, rings, and sleeves using a comprehensive range of copper alloys compliant with international and local casting standards (such as DIN EN 1982: 1998-12, PN-EN 1982, DIN 1705, 1709, 1714, PN 91/H-87026, ASTM B271, BS 1400), including the utilization of special alloys. Our offered materials encompass bronze, aluminum bronzes, leaded bronzes, special bronze, brass, and custom alloys. At KIGEMA, we possess a dedicated laboratory facilitating mechanical property testing, such as hardness, elongation, and micrometer analysis. We conduct thorough penetration and ultrasonic tests and issue certificates of conformity compliant with EN 10204-2.2, 2.3, 3.1B. Furthermore, our company maintains an air-conditioned measuring room equipped with high-quality and regularly calibrated instruments, including calipers, altimeters, depth calipers, inside micrometers, bore gauges, outside micrometers, and roughness testers.

Website See all products
BUDENBERG GAUGE CO LTD

United Kingdom

Budenberg is a leader in high-quality pressure and temperature, gauges, valves, and calibration instruments. All our products can be custom made based on your technical requirements. With our world-class technical services, you can be assured of a high level of after-sales support, recalibration, repair, training, and certification. Budenberg is recognised as a world leader in the supply of a wide range of calibration products including Dead Weight Testers, High Accuracy Test Gauges, Hand Pumps, etc. The Budenberg brand is known worldwide for its longevity, quality, and reliability. Budenberg Dead Weight Testers can be found in workshops and laboratories globally. Budenberg is a global supplier of high-quality instrumentation/piping specification valves, designed and manufactured at our site in the UK for complete reliability to give total customer satisfaction. We have a wide range of ball and needle valves, double block and bleed valves, monoflanges and injection/sampling valves in a variety of materials and sizes, both from our standard range or specially manufactured units to meet the individual requirements of the customer. Budenberg has been manufacturing pressure gauges for 170 years and is able to offer an unparalleled range of pressure and temperature instruments and associated fittings. The quality of Budenberg instruments is well respected throughout the world and is synonymous with reliability and durability.

All the products for "instrument calibration"

Pneumatic Deadweight Testers

Deadweight Testers

Temperature Gauges

Differential Pressure Gauge

Bourdon Tube Pressure Gauges

See all products

A page for your business

Can you see this? Your potential clients will too. Join us now so you too can be visible on europages

Add my business

ARISTO CUTTING SOLUTIONS GMBH

Germany

ARISTO was founded in 1862 as a factory for mathematical and calibration instruments. During the exceptionally long company history, ARISTO has made a name for themselves internationally as a supplier of slide rules and drawing aids amongst others. In addition, ARISTO has been a pioneer in Germany as far as geometric data processing is concerned. Today, ARISTO is the leading German manufacturer for large format, computer-controlled flatbed machines for use in signmaking, digital diecutting as well as in the packaging, textile and leather industries. The ARISTOMAT machine generation of flat bed plotters first introduced in 1959 was already built with an – at the time – highly modern contour control system in the following year and supplied to various customers. Over the course of the years, the ARISTOMAT line developed from a pure plotter to a CNC cutter.
BERCU

Belgium

A full range of instruments : calibrators, temperature simulators, infrared thermometers, panel meters, multimeters, tachometers, transmitters, loggers, recorders, sensors, probes, hand held manometers, thermometers, lux meters, velocity meters, etc. As an established full service instrumentation company, disposing of high accurate calibration instruments, we can provide reliable calibration and repairs for both hand held and control instruments. We are able to perform traceable calibrations on all types of instruments and devices. We carry out calibrations for pressure gauges, ammeters, thermometers, tachometers, moment spanners, torque screwdrivers, transmitters, and other devices. We also draw up on demand calibration & conformity certificates. Your instrumentation can be sent in to us, or we can travel to your location to fetch it.
FONDERIA MESTIERI

Italy

Our company offers numerous services in various fields: mechanics, electronics, information technology, mechatronics, optical-measurement, video & multimedia, graphics - web design and scenography. We design, manufacture and trade technical articles and products in plastic and metal, also equipped with electrical and optical parts; equipment and molds for processing plastics and metals; components for energy generation from renewable and non-renewable sources; installation of plants and machinery c / own and subcontract; technical instrumentation calibration activities. We also offer services of design, construction, assembly, installation, maintenance, technical assistance and staging of sets and stage machines for shows and events.

See all products
G J C INSTRUMENTS LTD

United Kingdom

Scientific Apparatus & Instruments - Manufacture & calibration of liquid flowmeters for measuring, checking, testing liquid flow rates from 0.05-25 ml/min. Model 5025000 HPLC Liquid flowmeter - sales, calibration & repairs PEAK output simulator - sales, calibration and repairs
CYGNUS INSTRUMENTS LTD

United Kingdom

CYGNUS is a manufacturer of ultrasonic testing equipment and a pioneer in the digital Multiple-Echo technique which has long since been the industry standard for through coating measurement of material thickness. Driven by the need for a hand-held device, CYGNUS has developed Multiple-Echo digital thickness gauges which measure metal thickness through protective coatings in a reliable and repeatable way. CYGNUS gauges are robust and simple to use and engineered to withstand the harshest environments. Our roots are in marine inspection services and we are investing heavily in market research and product development. CYGNUS has set and raised the standard for accurate thickness measurement devices, manufacturing gauges utilised in almost all industries including: Explosive environments; Rope access surveys; Ship hull surveys and Underwater inspections. Cargo hold hatch covers and door seals, Tightness testing equipment, Corrosion monitoring equipment, Hands free operation for climbing and rope access work, Hatch cover inspection equipment, Hatch cover leak detector, Hatch seal tester, Hull thickness gauge, Leak detection unit, Pipeline corrosion monitoring, Thickness measurement equipment, Tightness detection system, Instruments for measuring, checking and testing material thickness, Ultrasonic tightness and thickness test equipment and gauges, Underwater corrosion and thickness gauges, etc.

Website See all products

BURSTER PRÄZISIONSMESSTECHNIK GMBH & CO KG

Germany

With passion for precision and quality the German brand burster precision measurement technology develops and manufactures since 60 years as one of the most important suppliers precision instruments, sensors and systems for sensor signal processing and process monitoring. burster applies highest quality standards in its production of components and systems in accordance with EN ISO 9001: 2015. burster supplies 7500 customers worldwide. burster’s innovative and experienced team provides intensive application support even before a decision to buy is made. Solving complex measurement problems and integrating measurement and test technology into production environments for production control, quality assurance and test-equipment monitoring are everyday's instrumentation tasks. burster supplies measuring technology ranging from individual sensors to system solutions, with emphasis on plant construction and engineering, automation, the automotive industry and its suppliers, electrical and electronic engineering and chemicals industry. It also has a presence in numerous other sectors and future markets such as electro-mobility, alternative energies, medical engineering and biotechnology. In addition to solutions employing standard products, burster provides custom OEM solutions. Many years of experience as manufacturer of measuring sensors and instruments guarantee optimum solutions. This has earned burster an international reputation for innovation geared to customers’ needs.

All the products for "instrument calibration"

DIGISTANT® 4462, High precision calibration

Universal calibrator - DIGISTANT® 4420

Precision RTD simulator -Model 4530

Precision PT100 simulator - Model 4506, 4506 S

Calibration resistor - 1240

Website See all products
VÖGTLIN INSTRUMENTS GMBH

Switzerland

Vögtlin is a Swiss company which develops precision flow rate devices. Our experts in flow rates have been developing high-quality products and solutions for your flow rate metering and controlling tasks for 30 years. Our thermal mass flow rate meters and mass flow rate controllers for gases, with digital and analogue output and IP67/NEMA6 and ATEX protection, are ideal for wide range or applications. This includes the areas of gas analysis, laboratory equipment, pharmaceuticals, biotechnologies, life sciences, research and development, testing equipment, OEM and many industrial applications and all-round solutions. Our high-precision flow rate meter and controller devices are built using MEMS semiconductors technology. With more than 300, 000 units sold, we are an internationally respected player in the market. Our OEM partners and customers require reliable quality and reproducible performance. As a company with ISO 9001: 2015 certification, we can guarantee compliance with the highest quality standards.

Website

Product recommendations

Switzerland

DIGISTANT® 4462, High precision calibration

Germany

Germany

Czech Rep.

See more products

HALSTRUP-WALCHER GMBH

Germany

A family-owned and highly innovative supplier of customised products halstrup-walcher GmbH is a medium-sized company, which has been in family-ownership ever since it was founded in 1946. CEO Jürgen Walcher looks back at the impressive rise of his company. "The focus of our products has changed significantly since those early days, but the precision and innovative power of our solutions have remained a constant factor." halstrup-walcher GmbH successfully manufactures and markets products in three business areas: positioning systems for automated format changeover in mechanical engineering applications, pressure measuring technology for cleanroom, air-conditioning and OEM applications as well as drive solutions based on spur gears and actuators. The approx. 160 employees develop and manufacture both standard and customer-specific solutions. The level of in-house production is remarkable. halstrup-walcher's strong quality assurance programme and lean processes have made it a highly professional partner offering impressive performance in terms of quality, costs and punctuality.

All the products for "instrument calibration"

Calibration certificate pressure measurement technology

Mobile calibration device KAL 84

Mobile calibration device KAL 100 / 200

See all products
STL SYSTEMS AG

Switzerland

STL is specialized in solving complex and demanding technical challenges by high technology system approaches used for naval and industrial applications. STL excels in the ability to combine specific requirement of discerning customers with various sensor influences, field generating systems and sophisticated data processing using STL's flexible sensor modules in combination with analysis tools. Special know how is accumulated in the area of magnetic and electric field measurement systems and data analysis by using ultra precision digital data acquisition systems and mathematical algorithms also applicable to acoustic measurement systems

All the products for "instrument calibration"

Nanovoltmeter - DX 005 / 020

Picovoltmeter - DX-ULNA

See all products
SHAW MOISTURE METERS

United Kingdom

Shaw Moisture Meters has been at the forefront of the design and manufacture of dew point meters, hygrometers and moisture analyzers for industrial and commercial applications, for over 60 years. The preferred choice of leading industry experts, we design and manufacture moisture measurement solutions for a wide range of industries including power generation, semi-conductor manufacture and pharmaceuticals. With years of experience and expertise, we know our products will do exactly what they say they will. The SHAW guarantee is complimented by our commitment to deliver an exemplary service every time. An important part of our service is to ensure that you receive the right product for your application every time. We offer products and services of the highest quality conforming to recognized standards of quality and calibration, built with meticulous attention to detail and using the most cost effective methods achieved through innovative research, design and manufacturing practices. On an individual user level, our products are designed to be reliable, easy to install and simple to operate, guaranteeing reliability and performance. So whether your priority is continuous measurement of the dew point in compressed air or keeping hazardous environments stable, our technical knowledge and clear product specifications make it easy to find the product that matches our requirements.

All the products for "instrument calibration"

Laboratory Calibration and Service

See all products
ANTONIO MAI DI MAI ING. MASSIMO & C. S.N.C.

Italy
L.C.

Italy
GIGAHERTZ OPTIK GMBH

Germany

Gigahertz-Optik GmbH boasts more than 30 years' experience in the development, production, calibration and distribution of optical radiation measurement instruments for use over a broad spectral range, from ultraviolet through to near infrared. As an independent company, we benefit from the flexibility of a typical medium-sized German manufacturer that can efficiently respond to the needs of its clients and markets. Thanks to the individual, attentive assistance offered to end customers and OEM customers in a variety of areas of research and industry, our company has gained long-term recognition and respect from our customers all across the world. An equally high level of support is provided to customers in North and South America by our Massachusetts-based subsidiary Gigahertz-Optik Inc.

See all products
KINEX MEASURING S.R.O.

Czech Rep.

Tradition, inovation, quality, design – for 110 years on the market We manufacture the top quality measuring instruments based on research and development of new materials, technologies and processes: - Manufactured as per DIN Standards - Inspection and calibration processes as per ISO and VDI - Development of mechanical and digital measuring instruments, hardware and software - Measuring instruments made of top quality materials - Carbon Fiber , Titanium. - Strong background within HTC Holding Group together with Zetor, Kinex Shanghai, Kinex KLF, Elektro karbon - Swiss quality made in the Czech Republic We provide continuous development in production reflecting the last market trends, very good background and support for our business partners, high level of inventory , fast delivery within Europe as per requirements of our customers. Our main focus is on precision workshop and control measuring instruments for industrial use especially for automotive industry and high precision machinery.

See all products
OTAVA LLC

Ukraine

About us Limited Liability Company “Scientific and Service Company “OTAVA” offers a line of various control and measuring instruments of its own production under the trademark "METRINCO". The devices are developed taking into account the latest world trends in instrumentation with the involvement of the best Ukrainian specialists in the field of radio engineering and metrology. Our production uses high-quality components of well-known global brands. Why choose METRINCO measuring instruments? - Each of our instruments is individually assembled, adjusted and calibrated. We guarantee high quality and excellent metrological performance of our products. - Ease of use, fast measurement speed, and high accuracy while maintaining an affordable price are our top priorities. Thanks to creative design solutions, METRINCO measuring instruments can be used to perform the measurement process with minimal time and high accuracy. The high accuracy of the devices has been metrologically proven by Ukrmetrteststandard - is the central authorised organisation of Ukraine for metrology and standardisation of measuring instruments. METRINCO instruments are covered by a two-year warranty. Post-warranty service is also available. Our company is ISO 9001: 2015 certified. Our products are certified according to the following standards: EN 61326-1: 2013 related to CE Directive: 2014/30/EU (Electromagnetic Compatibility), 2011/65/EU (RoHS)

See all products

CHEMIFARM SRL

Italy

Accredited Laboratory WE ARE ACCREDITED FOR PRODUCTION (RMP n° 186) AND FOR CALIBRATION (LAT n° 186) Accreditation gives the calibration certificates and reference materials produced a high degree of reliability in terms of quality and safety of the goods and services subject to verification and guarantees their recognition on international markets. Meaning of accreditation: certification by Accredia, Single National Accreditation Body (Reg 765/2008) acting as guarantee above the parties for competence, independence and impartiality of calibration laboratories and manufacturers of reference materials, certifying compliance with the standards of products placed on the market; the accreditation attributes value and reliability to products and calibrations Reference materials, Calibrations, Set-up of laboratories and instruments We produce both accredited and ISO traceable reference solutions, with standard values or at customer's request. We perform both accredited and traceable calibrations. We design and supply laboratories complete with furnishings, instruments and structures (B-LAB line). Production We are the only centre in Europe (RMP N. 186), capable of producing synthetic reference materials in solution at such low electrolytic conductivity values 0.6 μS/cm. Producer of ISO reference materials. Calibration Accredited laboratory (LAT N. 186) for the accredited calibration of pH meters, conductivity meters and refractometers; calibration service with traceable report

See all products
ALPHA MOISTURE SYSTEMS LIMITED

United Kingdom

(2016) Alpha Moisture Systems manufacture a broad range of Dewpoint Meters, Dew-point Transmitters, Dew point Hygrometers, SF6 Analyzers, Online Dewpoint Hygrometers, Chilled Mirror Hygrometers and Dew-point Sampling Systems specifically for the measurement of trace moisture content in gases, SF6 and dry compressed air. A large dewpoint range available between +30°C to -110°CTd (+86°F to -166°FTd), or equivalent as low as nearly 1 part per billion. Our dew-point instrumentation are used in non-hazardous and hazardous (Ex) environments and applications. For added customer confidence when using an Alpha Moisture System Product, all instruments are designed and built using quality components to the highest standards and specifications and ompliant with our quality system certified to ISO 9001: 2008. We can therefore offer all our products with a generous warranty and a Certificate of Calibration issued from our in-house state of the art Calibration department, guaranteeing reliability and ultimate performance. The extensive range of user friendly dew point meters, on-line hygrometers and dewpoint sampling systems have also been designed to meet the most demanding requirements and needs expressed by the industry. Our in-house capability to design and prototype enables us to manufacture bespoke equipment to customers’ specific requirements and specifications.
ANDJANA INSTRUMENTS UG

Germany

Andjana Instruments offers safe compressed-air quality – air quality monitoring – behind compressors – filters – activated carbon – measuring residual oil content and more: Comprehensive modular compressed air and gas measuring technologies for oil content, volumetric flow, humidity, pressure dew point, particle measurement, pressure, temperature, gases, emissions with optional data acquisition and remote diagnosis according to HACCP – GMP and FDA requirements, ISO 8573, EN 12021 breathing air; validated data records according to FDA 21 Part 11 with audit trail. Metrological safety for industry and hospitals – breathing air systems – laboratories, cleanrooms. Medical hospital breathing air systems according to ISO 7396 – European Pharmacopoeia; risk monitoring for medical compressed air – in-house production in accordance with the Medicinal Products Act; quality control for medical gases – oxygen – nitrogen – compressed air of own production. Standard and CE conformity assessments for medical gas supply systems; job measurements, calibration service, service
SCALESMART.COM

United Kingdom

ScaleSmart was established in the 2001 to supply all types of weighing scales and laboratory balances at discounted prices. Scalesmart supply a selection of premium weighing scale brands, there are models from manufacturers such as AnD Instruments, Dini Argeo, MWS Ltd, Radwag and Tanita plus many more. You can be sure that any models supplied pass stringent quality tests for useability and durability. After sales support is taken care of by a third division of MWS Ltd. Betterweigh undertake calibration, repair and servicing of all types of weighing scales throughout the UK. Betterweigh support many bluechip clients such as Northern Foods, Premier Foods and PepsiCo. Scalesmart is owned and operated by MWS Ltd who have been manufacturing high end weighing machinery for the UK trade since 1994. MWS Ltd supply a diverse range of high profile customers with standard and bespoke weighing scales manufactured at their factory in Leicester. MWS Ltd has built up an enviable reputation as a prestige weighing scale manufacturer within the UK market place, a reputation which ensures major scale companies continue to use MWS products.
BOWERS GROUP

United Kingdom

The BOWERS GROUP is a supplier of quality metrology instruments and a respected global leader in the field of measurement: Measuring, Analysing & Controlling Instruments, Manufacture of instruments and appliances for measuring, checking, testing, navigating and other purposes, except industrial process control equipment. Our products include : Bore gauging, Calibration, Hand tools, Height gauging, Levelling, Optical measuring, Special applications, Testing instruments, Thread measuring, Workshop tools. Our brands include: - BOWERS: manufacturer of quality measuring instruments. - MOORE & WRIGHT: manufacturer of precision measuring equipment. - CV INSTRUMENTS: manufacturer of portable and bench hardness testers. - BATY INTERNATIONAL: manufacturer of high precision dial indicators and other associated instruments such as cylinder bore gauges. The BOWERS GROUP is a SPEAR & JACKSON company, a multi-national organization with divisions covering garden tools, metrology equipment, woodworking tools and magnetic equipment.
FILTON PROCESS CONTROL ENGINEERING

United Kingdom

FILTON is specialised in Industrial Flow Measurement Systems.FILTON can offer the package that best meets your requirements and budget, whether you need a single flowmeter or a complete instrumentation system / turnkey project. We provide flowmeter service, calibration and hire facilities, so we are more than just a supplier: Measuring, Analysing & Controlling Instruments, Manufacture of instruments and appliances for measuring, checking, testing, navigating and other purposes, except industrial process control equipment.
MARVTECH

United Kingdom

** Mechanical Engineers, Architectural and engineering activities and related technical consultancy ** MARVTECH is now a leading provider and specialist supplier of project design, manufacture, installation, commissioning and maintenance of electrical, instrumentation and control systems to the following industries: Food and Beverage, Automotive, Pharmaceutical, Steel Textiles, Heating, Ventilation and Cooling, Sports and Leisure : Control Panel Design and Manufacture, Calibration and Repair of Field Instrumentation, Inspections and Testing of Hazardous Areas, Project Feasibility Studies For Capital Applications, SCADA Control System Design, DCS Interface Manufacturing and PLC Software.
BRANNAN THERMOMETERS LTD

United Kingdom

BRANNAN THERMOMETERS & INSTRUMENTATION are leading European manufacturers of Thermometers, Pressure Gauges and associated products and have been manufacturing and supplying thermometers, pressure gauges and instrumentation since 1913. Our glass thermometer and pressure gauge manufacturing facility in England is highly mechanised offering high quality glass thermometers and pressure gauges at internationally competitive prices. Complimenting our production facilities, the company provides a calibration service operating its own UKAS accredited laboratory. We supply OEMs, Resellers and End-users in Retail, Scientific and Industrial markets worldwide a vast array of glass thermometer and pressure gauge products. The company has operated a quality management system since 1991 and currently operates within the scope of ISO 9001: 2008. We also have a UKAS accredited calibration laboratory that operates within the scope of ISO 17025: 2005.
PCE INSTRUMENTS

United Kingdom

PCE INSTRUMENTS is a manufacturer and seller of test equipment, control systems, scales and balances as well as laboratory equipment, operating on an international level: Acoustic Noise Dosimeters, Control Systems, Laboratory Technology, Measuring Instruments and Weighing Equipment, Sound level meters ... We mainly sell test meters which are developed, produced and sold under our own label "PCE INSTRUMENTS ®". Test Equipment which is not manufactured by PCE Instruments itself is selected from other top class manufacturers. PCE offers advice during the customer’s selection process, information on how to use the equipment and repair and (re)-calibration services, which is beneficial and convenient for our customers because they get everything they need from one source. The company’s headquarters are in Germany, with offices in Italy, France, Turkey, the Netherlands, Spain, Hong Kong, China, the US, Poland, Bulgaria, Chile and the UK. At PCE INSTRUMENTS we distribute smart products and solutions for technical tasks in industry, research and development.
SMT-MESSZEUGE® ASCHAFFENBURG STEFFEN SCHILLER

Germany

Our company has been manufacturing and marketing precision gauges and measuring tools since 1986. The SMT-MESSZEUGE® brand was created in 1995. The SMT-MESSZEUGE range includes thousands of measuring tools and instruments, testing devices, plus special and precision gauges. Some measuring instruments we manufacture ourselves, others we have exclusively manufactured by partner companies that have been working with us for decades. We also purchase measuring and testing equipment from leading global manufacturers. Measuring and testing equipment can also be provided with the respective factory calibration certificate or DakkS calibration certificate (from the German accreditation authority), for an additional fee. We work together with various calibration laboratories. According to your drawings, we can offer a range of special designs including: Micrometers, thickness gauges, special gauges (special adaptations, taper gauges, ring gauges, plug gauges, left-hand threads, etc.), graduated rulers, steel rulers, vernier callipers, parallel supports, steel or aluminium assembly rulers, straight edges, centring angle plates, scales, verniers, graduated rules, and much more. Our 340-page catalogue (available in English and German) covers 6000 of the most widely used measuring and testing devices. To discover our extensive range of products including detailed images, dimensions, drawings and standards, visit our homepage at www.smt-messzeuge.de. You can also find more measuring equipment, such as assembly rulers, steel rulers, measuring shims, measuring callipers, surface comparison patterns and surface standards in our shop at www.messmittel.tools.