Ⅰ. Product description: Wireless alarm with motion sensor BS-02 Ⅱ. Operating principle: When the alarm is activated, the green LED lights up and the user must leave the alarm zone for 15 seconds. At a distance of 10-15 m from the sensor, a 105 dB siren signal is activated. The alarm can also be turned off using the included remote controls. Ⅲ. Specification: Resistance to interference and probability of false alarms are considered. For use at home, in the garage, in the yard. Battery-powered mobile device that can be taken with you wherever you want. The device has two remote controls with 3 x Ag13 1.5V batteries for turning the alarm on/off. Device sound is up to 105dB. The sensor detects movement at an angle of 110 degrees. The device is powered by four 1.5V AA batteries. Thanks to the included bracket with a movable head, the sensor can be hung on the wall at any angle. The sensor detects movement in a range of 110 degrees. Ⅳ. Range: about 8 meters. Ⅴ. Warning! The installation of the product must be performed by a qualified specialist. The seller is not responsible for improper installation of the product and damage caused as a result. Ⅵ. Warning! The installation of the product must be performed by a qualified specialist. The seller is not responsible for improper installation of the product and damage caused as a result.