access control equipment Denmark

... since store entrances cannot always be supervised. Passage sensors are also sold as door chimes, doorbells, wireless doorbells, wireless chimes, or access sensors, and typically consist of two parts - the motion detector and the passage sensor receiver. The Photo Gong is a quality product among passage sensors and has been developed by Servodan for 40 years. It is available in three different versions: as a light barrier (IR - infrared light barrier), PIR (passive infrared motion detector), and wireless (cordless) PIR.