Duct Mount CO2 Sensor,with no display,0/2-10Vdc or 0/4-20mA output. Overview These stand-alone Carbon Dioxide (CO2) Sensors and Controllers are used for determining ventilation necessity with HVAC controllers and to manage the amount of fresh outdoor air supplied to maintain acceptable levels of CO2 in the space. Features Models available with LCD that provides sensor readings and status information. Non-Dispersion-Infrared (NDIR) technology used to measure carbon dioxide gas. Gold-plated sensor provides long-term calibration stability. C7232 provides voltage or current output based on CO2 levels. SPST relay output. Used for CO2 based ventilation control (Demand Control Ventilation (DCV)). Automatic Background Calibration (ABC) algorithm based on long-term evaluation reduces required typical zero-drift check maintenance. Product Specifications Application Carbon Dioxide Sensor Dimensions (in.) 5 5/8 in. high x 3 5/16 in. wide x 3 7/16 in. deep x plus 8 in. long sensing tube Dimensions (mm) 142 mm high x 84 mm wide x 87 mm deep x plus 203 mm sensing tube Includes Honeywell Logo Item Type Product Mounting Duct mount Frequency 50 Hz; 60 Hz Electrical Connections Six leadwires, 20-gauge, 6 in. long Sensor Non-dispersive Infrared (NDIR) Contact Ratings 1 A @ 50 Vac/24 Vdc Voltage 24 Vac/dc �20%, Operating Temperature Range (F) 32 F to 122 F Operating Temperature Range (C) 0 C to 50 C Relay Outputs One: Normally Open SPST Timing Response--1 minute Accuracy 5% full scale Display None Sensor Range 0 to 2000 ppm, adjustable Analog Current Output 0/2 - 10 Vdc or 0/4 - 20 mA selectable, w/ one relay output