Reliable TechnologyMotion Detection A complete alarm system based on a standalone motion sensor the PIR motion detector features a 120 and 180 degree flip detection design a communication range of up to 100m audio range in open space and an infrared sensor detection range of about 58m 125db alarm or loud alarm mode and advanced passive infrared PIR to detect movement within the detection area to keep you informed and safeEasy InstallationJust install it in the right place wallmounted or vertically mounted on the ceiling The motion alarm is easy to install with 3M tape and a 360rotatable wall mount No monthly fees no contracts no wifi network required Hasslefree installationPowered by 3 AAA batteries not included or USB cable included The wireless design with battery operation reduces the hassle of installing the motion sensor The 360 rotating mount has a wider detection angle which is ideal for multiple scenes such as home office warehouse etc Note DO NOT install it outdoors as the sensor is NOT waterproof Activate Deactivate in one second Just slide a button on the remote control to activate or deactivate the sensor when you need EXPANDABLE Expand this A1 PIR motion sensor with other accessories for the FeelGlad Home Alarm System You can expand this system with up to 50 additional sensors or 20 multireceivers Specifications Standby current Working current Shutdown current Detection range 8m Detection angle 110 degrees Sound level 125dB Humidity Already paired with the remote control The alarm system is powered by batteries incl or a power adapter not included It can be operated via buttons on the unit itself or with the included remote control 20 remote controls can be paired with this alarm body for our home security What you get 1 x A2 Motion Sensor Alarm with Builtin 125dB Siren 1 x Remote Control Mounting Hardware English User Manual