Password Alarm: If a person enters the detection area of the infrared alarm, the alarm will activate after a 5-second delay, allowing time for disarming. If the correct password is not entered within this period, a 30-second ble alarm with a volume of 105 dB will sound. Detection Range: This home security alarm features a 105-degree wide detection angle and a detection distance of 3 to 5 meters, ensuring reliable coverage of the monitored area to help protect your home and property. PIR Infrared Sensor: The motion sensor alarm includes a built-in passive infrared (PIR) sensor that detects human movement. When motion is detected, the alarm is triggered to alert you of potential unauthorized entry. Easy Installation: This wireless alarm is simple to install—no wiring required. Just insert the recommended batteries and mount it on a suitable surface. During installation, avoid placing the device near sources of temperature fluctuation such as air conditioners, heaters, vents, or drafty areas. Position away from direct airflow and avoid mounting near door edges that may interfere with performance. Application: Ideal for use at entry points such as front doors, back doors, garages, sheds, and other outbuildings, providing versatile indoor security coverage.