1、328Ft Wireless Range: With a working range of up to 328 feet (100 meters), you can keep a long distance from the receiver to warn your family members, unwelcome guests, or unexpected arrivals and departures. 2、3 Alarm and 38 Ringtones: Wireless driveway alarm has 3 alarm options, ring, flash, both ring and LED, 38 ring tones and 4 volume levels, 0dB, 20dB, 40dB, 80dB, allowing you to fully customise your alarm. 3、IP65 Dustproof and Waterproof: With a working temperature range of ‑4°F‑140°F, this driveway alarm sensor can withstand various harsh weather conditions. Suitable for homes, apartments, schools, villas, offices, warehouses, hotels, factories, hospitals, etc. 4、Power Supply Modes: The receiver can be plugged into any standard outlet, while the sensor uses 3 AAA batteries (not included). Configure the detection time delay between motion sensor warnings to be 15 seconds to 30 seconds. Simply by placing the sensor at the driveway entrance and placing the receiver at home. 5、Wide Application: Motion detector alarm system can be used as doorbell, garage alarm, intruder warning, anti theft warning, wildlife warning, children and elderly care alarm, etc. It can be installed on the front door, window frame, driveway, etc., or anywhere you want. Item Type: Driveway Alarm Material: ABS Transmitter Battery: 3x AAA batteries (batteries not included) Working Range: Approx. 100m / 328.1ft Infrared Range: Approx. 7m / 23ft Detection Angle: 120 degrees Ringtone: 38 melodies RF Frequency: 433MHz 2 x Transmitter 1 x Receiver 2 x Bracket for Swivel Head 2 x Swivel Head 1 x English Instruction Manual 2 x Long Screw 2 x Short Screw 4 x Expansion Screw