Honeywell C7232 Carbon Dioxide (CO₂) Sensors
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 air supplied to maintain acceptable levels of CO₂ in the space.
• 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.
Select a link under the "item" tab below to order.
| Display | Cat # | Mounting | inch | Includes |
| Yes | C7232A1008 | Wall mount | 5 1/16 in. high x 3 11/16 in. wide x 2 in. deep | Honeywell Logo |
| No | C7232A1016 | Wall mount | 5 1/16 in. high x 3 5/32 in. wide x 2 in. deep | Honeywell Logo |
| Yes | C7232A1024 | Wall mount | 5 1/16 in. high x 3 5/32 in. wide x 2 in. deep | No Honeywell Logo |
| No | C7232A1032 | Wall mount | 5 1/16 in. high x 3 5/32 in. wide x 2 in. deep | No Honeywell Logo |
| Yes | C7232B1006 | Duct mount | 5 5/8 in. high x 3 5/16 in. wide x 3 7/16 in. deep x plus 8 in. long sensing tube | Honeywell Logo |
| No | C7232B1014 | Duct mount | 5 5/8 in. high x 3 5/16 in. wide x 3 7/16 in. deep x plus 8 in. long sensing tube | Honeywell Logo |
| Yes | C7232B1022 | Duct mount | 5 5/8 in. high x 3 5/16 in. wide x 3 7/16 in. deep x plus 8 in. long sensing tube | No Honeywell Logo |
| No | C7232B1030 | Duct mount | 5 5/8 in. high x 3 5/16 in. wide x 3 7/16 in. deep x plus 8 in. long sensing tube | No Honeywell Logo |
| Description: | Carbon Dioxide Sensor, Non-dispersive Infrared (NDIR) | ||||||
| Carbon Dioxide Range: | 0 to 2000 ppm, adjustable | ||||||
| Analog Current Output: | 0/2 - 10 Vdc or 0/4 - 20 mA selectable, w/ one relay output | ||||||
| Electrical Connections: | Six lead wires, 20-gauge, 8 in. long | ||||||
| Contact Ratings: | 1 A @ 50 Vac/24 Vdc | ||||||
| Relay Output: | One: Normally Open SPST | ||||||
| Voltage: | 24 Vac (±20%) | ||||||
| Frequency: | 50 Hz; 60 Hz | ||||||
| Response Time: | 2 minutes | ||||||
| Sensor Type: | Non-dispersive Infrared (NDIR) | ||||||
| Operating Temperature Range: | 32 F to 122 F (0 C to 50 C) | ||||||
| Accuracy: | (5% full scale) | ||||||
