Description About this product: Reliable distance range: Communication range up to 100 m (sensor and receiver/siren/bell), detection range up to 5-8 m (distance between sensor and detected object). Adjustable volume and mode: Alarm volume up to 100dB, with 3 alarm choices (high ring/low ring/alarm) and 3 modes (flash/LED/sound and LED flash). Various applications: Perfect for giving you a little warning before guests or intruders arrive. Installation tips: Keep the PIR sensor. Keep an unobstructed path to the receiver, and do not place the sensor where wind will move the sensor or change its detection angle in order to get the best performance. Power supply: You can use 3x1.5V type. - C battery (not included) or AC adapter (not included) for the receiver and 3 AAA batteries (not included) for the sensor. Never use C battery and AC adapter at the same time. Product Description Dimensions: 1 receiver with 2 motion detectors | Color Name: White Driveway Security Alarm Kit. The driveway alarm provides a convenient and cost-effective way to warn of intrusion. When an object is detected, the PIR sensor sends a signal to the receiver up to 300 meters away, and you will be notified and safe. Options: p Operation distance: 100 m (in an open area with no obstacles). Motion detection range: 5-8 meters. Volume: ≥100 dB (within 5 meters). Protection level (PIR sensor): IP44. < p>Power Supply (Receiver): 3 x 1.5 VC type batteries / 6 V DC adapter (not included). Power Supply (PIR Sensor): 3 AAA batteries (not included). Note. Do not install the PIR sensor in direct sunlight (PIR detects moving heat sources) or in a location affected by wind. > Avoid mounting the PIR sensor and receiver close to any metal objects. When installing the sensor outdoors, it is best to install it in the shade to minimize temperature changes. When installing the sensor outdoors, it is best to install it in the shade. > The receiver's ringing signal can affect metal structures, walls and other devices with the same frequency. Contents: 1 Receiver. < /p> 2 PIR Sensors. 1 User Manual (not guaranteed in French). 4 anchors and screws. The dimensions are measured manually, please allow for errors (1-3cm). Due to different display pixels, there may be color differences, please refer to the actual product.