Sygonix Passage detektor med LED 120 dB SY-5045276 This text is machine translated. The passage detector signals, for example, the entry of a person in the sales room of a business. He also serves as a perfect deterrent for house or garage and protects against undetected access. A PIR sensor is built into the sensor unit, which responds to temperature changes within the detection range, e.g. if a person enters the detection range. Thereupon, the signal unit sends a wireless signal to the signalling unit. This emits an audio signal (5 different signal tones and 4 different volume levels), two LEDs also flash. The sensor and signalling units are operated with batteries. The signalling unit, however, can also be operated with an external power supply (not included, can be ordered separately). Features Highlights leveransomfattning