Twidec/1 Pair 0-20M Indoor Wall Mounted Photoelectric Beam Sensor NPN NO 18mm Photoelectric Sensor Switch Proximity Switch 2m line Length with Infrared Ray Beam E3F-20DNL-18 electronics_July2024_update Colors: brushed satin nickel

Colors: brushed satin nickel

The screw knob enables quick and easy fastening of the ball heads

resolve the issue of radio interference and flickering

Tie-gum construction eliminates the potential for delamination common

Twidec/1 Pair 0-20M Indoor Wall Mounted Photoelectric Beam Sensor NPN NO 18mm Photoelectric Sensor Switch Proximity Switch 2m line Length with Infrared Ray Beam E3F-20DNL-18 electronics_July2024_update Colors: brushed satin nickelTwidec 1 Pair 0 20M Indoor Wall Mounted Photoelectric Beam Sensor NPN NO 18mm Photoelectric Sensor Switch Proximity Switch 2m line Length with Infrared Ray Beam E3F 20DNL 18 Photoelectric Switch control by infraredray, as a apporach sensor, includeing a transmitter and receiver in it. A retroreflective arrangement places the transmitter and receiver at the same location and uses a reflector to bounce the light beam back from the transmitter to the