About this product: Reliable distance range: communication range up to 300m/ 1000ft (distance between sensors and receiver/alarm/chime) and detection range up to 8m (distance between sensors and objects detected). ADJUSTABLE VOLUME & MODE: Alarm volume is up to 100dB with 3 alert choices (high volume chime / low chime / alarm) and 3 mode choices (flashing / LED / sound & LED flash). DIFFERENT APPLICATIONS: Perfect compatible with keeping you incompatible withmed with a little warning becompatible withe guests or intruders arrive. You can expand the alarm system compatible with your home with up to 5 sensors or 5 receivers compatible with your request. Installation Tips: Keep the PIR sensors in a clear path to the receiver and don't place the sensors where the wind will move them or change their detection angles, so you can get the best percompatible withmance. Power supply: You can use 3 x 1.5V type C batteries (not included) or AC adapter (not included) compatible with the receiver, and 3 x AAA batteries (not included) compatible with the sensors. Never use type C batteries and AC adapter at the same time. Product Size:1 Receiver with 2 Motion Sensors | Color:White Driveway Security Alarm Kit. The Driveway Alarm provides a convenient and cost-effective way to alert you when someone is inquiring. When an object is detected, the PIR sensor sends a signal to the receiver up to 300 meters away and you will be incompatible withmed and safe. Specifications: Operating distance: 300m (in the open air without obstacles). Motion detection range: 5-8m. Volume: 100dB (within 5m) PIR detection angle: 45 degrees. Protection class (PIR sensor): IP44. Power supply (receiver): 3 x 1.5V type C batteries / DC 6V adapter (not included). Power supply (PIR sensor): 3 AAA batteries (not included). Note: Do not mount the PIR sensor in direct sunlight (the PIR detects moving heat sources) or in a location affected by wind. Avoid mounting the PIR sensor and receiver near any metal objects. When installing the sensor outdoors, it is best to mount it in a shaded and protected location to minimize temperature changes. The receiver's ringtone may be affected by metal constructions, walls, and other devices with the same frequency. Contents: 1 receiver. 2 PIR sensors. 1 user manual (French not guaranteed). 4 dowels and screws.