Timeguard HF1 HF Ceiling PIR Presence Detector - Flush Mount Ceiling
from Timeguard (Model: HF1)
This high frequency HF1 Ceiling Presence Detector emits high frequency electromagnetic waves (5.8GHz) and receives their echo from which any change is perceived by the sensor indicating the presence or motion. Featuring a 360 degree/6m detection zone ait has a 3 second to 30 minute on ON function.
for Timeguard HF1 HF Ceiling PIR Presence Detector - Flush Mount Ceiling