Optex TD-20U | Scene: Indoor, Outdoor | 50ft. Long range & 17ft. fan pattern selectable | Weatherproof structure(IP54) for indoor and outdoor applications. Buy Now.
The TD-20U by Optex is a battery-powered passive infrared (PIR) sensor and transmitter for Optex RCTD-20U. The detection pattern is selectable, allowing for a 17 foot (5 meter) fan pattern or 50 foot (15 meter) beam pattern, and sends a signal back to the Optex RC-20U Chime Box when compromised. The device is powered by a standard 9 Volt alkaline or Lithium battery (not included), and up to nine (9) TD-20U's can be added to one (1) Optex RC-20U Receiver.