The External Device Relay Switch allows the radar speed sign to trigger external devices* such as cameras, flashing beacons, and audible alarms to deliver additional warnings or messaging; or allows the external device to trigger the radar speed sign.
The External Device Relay Switch option is available for AC and solar powered models. It can be programmed to trigger external devices based on:
- Time and/or Speed
Triggers messages or alerts based on time of day and excessive speeds. Especially useful for school zones or event areas.
Triggers messages or alerts based on temperatures. Especially useful to notify drivers of hazardous road conditions or other weather related warnings.
*External devices are customer supplied and integrated, and must be separately powered.