TD-20U

Optex Wireless 100 Indoor/Outdoor Sensor Transmitter

  • Compatible with RC-20U (Chime Box with Relay Receiver).
  • 15m Long Range and 5m Fan Pattern selectable.
  • Can be installed on wall, ceiling, and desktop.
  • Weather proof structure for indoor and outdoor applications.
  • Over 8 million codes possible, eliminates interference from neighbors.
  • Uses 9-Volt alkaline battery.
  • Low battery signal.
  • LED indicator.






Contact Us!


We have been in business since 1981 and have a very extensive knowledge in TD-20U Optex Wireless 100 Indoor/Outdoor Sensor Transmitter and anything related to garage door opener systems. Feel free to contact Kevin with any questions you might have @ 1-480-247-2094 or use the online form below.










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