ACT-400 Sound Level Meter by ACOEM - Weatherproof - Class 1

The Acoustic Connect Terminal is the latest addition to the Acoem product line - The Acoustic Connect Terminal (ACT-400) is the newest addition to Acoem's range of sound level meters, sound measurement stations, and acoustic sensors. It combines the precision of a Class 1 microphone with maximum protection from an outdoor kit and full connectivity through the Cadence™ noise management system as well as other open-source platforms. The ACT-400 is based on the same architecture as the proven IEC 61672 Class 1 sound level meters Fusion™ 4G and Cube™ 4G from Acoem. By omitting the screen and accessories of the devices while retaining all the proven technology and the robust, weatherproof housing, Acoem has managed to reduce costs to an absolute minimum. Country of Origin: France IEC Class: IEC 61672-1 Ed. 2.0 (2013) (0° and 90° reference direction); IEC 61620 (1995) NF EN 61260/A1 (2002); S Dynamic Range: 21-138 dB (A, B), 26-138 dB (C), 31-138 dB (Z), 1 single range for nominal sensitivity of 50 m Linear Operating Range for A-Weighting: 5 Frequencies: 31.5 Hz: 26-97 dB; 1 kHz: 24-137 dB; 4 kHz: 24-137 dB; 8 kHz: 24-133 dB; 12.5 Peak Dynamic Range: 61-140 dBC, 1 single range Time Weightings: Slow, Fast, Impulse, Peak Frequency Weightings: A, B, C, Z Stored Broadband Instantaneous Values: Depending on the setting in Cadence Filters: 1/1 (8Hz-16kHz) and 1/3 (6.3Hz-20kHz) High-Pass Filter Input: 0.3 Hz / 10 Hz Audio Recording: Uncompressed measurement signal, Fs = 51200 Hz; Sampling rates: 51200, 25600, 12800, 6400, 3200, 1600 Hz; Typical Background Noise (with MCE3 mounted on ACT-400): Less than 21.5 dB depending on measurement range Preamp: Integrated, non-removable Integrated Buttons: 2 buttons Connection: RJ45 connector, speed: 100 MB/s; DHCP mode; WIFI connection: IEEE 801.11b, g; Access Point Electrical Testing: Programmable periodicity: 1, 2, or 4 times per day (0h, 0h-12h, 0h, 6h, 12h, 18h); TTL Output: R = 100 Ohm / 0 / 5V TTL Input: R = 100 kOhm / 0...1V = "0" 1.8...5V = "1" Battery: Type Lithium-Polymer; Voltage 3.7 V; Capacity 6750 mAh; non-removable, charging time approx. 3 hours Protection Class: IP55 in standard use (vertical with nose cone and connection cover)