DEWDAT Security Alarm Systems 1 Receiver and 2 Weatherproof pir Motion Detectors for Yard/Garage/Barn Wireless Siren Kit for Port and Window Security

About this product: Reliable range: Up to 300m communication range (distance between sensors and receiver/alarm/chime) and detection range up to 8m (distance between sensors and detected objects). ADJUSTABLE VOLUME AND MODE: Alarm volume is up to 100dB with 3 alarm options (high beep/low beep/alarm) and 3 mode options (blink/LED/sound and LED flash). Various Applications: Perfect to accompany you with to keep you informed little warning before guests or intruders arrive. You can expand the alarm system for your home with up to 5 sensors or 5 receivers as required. Installation Tips: Keep the PIR sensors in a clear path to the receiver and do not place the sensors in locations where the wind will move them or change the detection angles to get the best performance. Power supply: You can use 3 x 1.5V Type-C batteries (not included) or AC adapter (not included) for the receiver and 3 AAA batteries (not included) for the sensors . Never use Type-C batteries and AC adapter at the same