8 Honeywell C723 Carbon Sensor & Controllers from DtiCorp.com 8 Honeywell C723 Carbon Sensor & Controllers from DtiCorp.com The Honeywell Carbon Dioxide (CO2) Sensors and Controllers are stand-alone carbon dioxide (CO2) sensors for use in determining ventilation necessity with HVAC controllers. Fort Lauderdale, FL - Popular Honeywell online retailer DtiCorp.com (http://www.DtiCorp.com) is introducing 8 brand new Honeywell C7232 Carbon Dioxide Sensors and Controllers. DESCRIPTION The Carbon Dioxide (CO2) Sensors and Controllers are stand-alone carbon dioxide (CO2) sensors for use in determining ventilation necessity with HVAC controllers. The sensor measures the CO2 concentration in the ventilated space or duct. The sensors are used in ventilation and air conditioning systems to control the amount of fresh outdoor a in Public bookmarkswith c7232c7232a1008carboncontrollersdioxidedticorp.comhoneywellsensors