1byone Wireless Home Security Driveway Alert Alarm with Remote Controller, Remote Distance 30 Meters

Reliable Range - Range of up to 100 meters (the distance from the sensor to the receiver) and Detection range of the sensor ( PIR sensing distance) is approximately 5-8 meters. It will keep you informed and safe by alerting you.User-Friendly Features - Ring volume up to 100db; 3 Mode Choices (only LED Flash / Sound and LED Flash / only Sound); 3 Alert Choices (High Volume Chime / Low Volume Chime / Alarm)Dependable Application - It uses a state of the art passive-infrared (PIR) sensor to detect any movement within the detection zone. Perfect for long or hidden driveways, or to allow you just a little extra warning before guests (or intruders) arrive.Expandable Product - If you have more than one driveway, or area you would like to monitor, you can expand the system with additional transmitters (O00QH-0513) or receivers( O00QH-0510, O00QH-0512)Power Supply - If you do not want to use the 3 x 1.5V type C batteries for receiver, you can just purchase the AC power adapter OUS00-0278 or directly purchase the premium alarm kit with adapter O00QH-0518, O00QH-0519.