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Bard S8403-067 - CO2 sensor with relay kit

Bard S8403-067 is an OEM CO2 sensor with relay kit used to monitor indoor carbon dioxide levels and provide a control signal for demand-controlled ventilation setups on compatible Bard wall-mount HVAC applications. This wall-mounted transmitter style includes an on-board display and is designed to integrate cleanly with building control strategies by providing common analog outputs along with a relay for straightforward enable or alarm functions, helping maintain proper ventilation as occupancy changes. To ensure proper fit and wiring, confirm your unit or control package specifies Bard S8403-067 (often referenced as the Dwyer CDT-2W40-LCD-RLY style sensor) before ordering.


  • Technical Specifications
  • Product number: S8403-067
  • Manufacturer description: CO2 SENSOR W/RELAY KIT
  • HTS Code: "9027.10.2000"

  • Previous Versions
  • 8403-067 (Obsolete, superseded by S8403-067)

$365.00

Please call for availability.

(844) WALLMOUNT

(844-925-5668)