Our XTRALERT 2000VR wireless receiver features 4 channels which allows the programming of up to 3 sensors per channels. The first 3 channels alert you one time that the sensor detected motion. The forth channel is a continous alert channel, which means that once it is triggered, you physically have to press one of the receiver buttons to stop the alert. Each of the 4 channels is equipped with a unique tone.
The receiver also features 1 adjustable (1-5-30 or 60 seconds) common relay output. The common relay output allow the receiver to trigger external devices normally open or normally closed, such as, sirens, lights, lamps, etc. This common output responds to ALL the sensors programmed on the receiver.