... ,wide range and far distance SpecificationsWireless Burglar Alarm System Infrared Remote Control Alarm 1 Mini shape 2.120db loudly ... alarm because the body lateral movement relative to the lens infrared detection highest sensitivity, while the vertical motion sensitivity poor, ... outlet, air vent, heater, air cooler, etc., to avoid the straight on the doors and windows. 3. Infrared remote control alarm ...