Optex RCTD-20U Wireless Driveway or Entry Announcer

The opted rctd-20u wireless annunciator system is a wireless detection and alarm system that may transmit signals up to 2,000 feet. This system is one of the best perimeter alert system to be had and is ideal for your home and is usually used for protecting businesses. It acts as a driveway alarm to inform you of approaching vehicles, a wireless doorbell, a warehouse delivery notification system and several other applications that makes it a complete security solution. Three different tone alerts to inform you of a security breach five different sensitivity levels contains up to 12 transmitters more than one detection patterns to verify perfect aiming trigger system utilizes a weather-proof motion detection sensor the size of a softball (easily mounted on most out of doors surfaces) no wiring of any kind is required operates off a 9v battery that lasts two years (on average).
Easy installation and setup
Indoor and out of doors use
Extra long transmission range of up to 2000 feet
Adjustable volume
On-off regulate