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  Relay Modules, Transmitters & Receivers

  Vanco Infrared IR Emitter Cover Shield for IR Blaster | 10 Pack

  Vanco

  $16.66
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  Blank Patch Panels, Relay Modules

  PDK Red™ POE++ Module Kit

  ProdataKey

  $202.50
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  Relay Modules, Transmitters & Receivers

  ELK Serial Port Expander Interface

  Elk Products

  $137.00
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  Access Control, Relay Modules

  ELK M1 Series 16-Output Expander Module (8 Voltage + 8 Relays)

  Elk Products

  $188.50
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  Out Of Stock

  Access Control, Relay Modules

  ELK M1/E27 Series Relay Conversion Board 8 Form

  Elk Products

  $117.00
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  Relay Modules, Transmitters & Receivers

  ELK M1 Series Data Bus Hub for Retrofit (Existing 4 Conductor Wiring)

  Elk Products

  $135.50
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  Relay Modules, Transmitters & Receivers

  ELK 12/24VDC Delay Timer Module | Up to 60 Minutes

  Elk Products

  $36.50
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  Relay Modules, Transmitters & Receivers

  ELK 12/24VDC Sensitive Relay DPDT Form C

  Elk Products

  $28.50
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  Relay Modules, Transmitters & Receivers

  ELK 12/24VDC SPDT Relay Module

  Elk Products

  $18.50