C7233A1008 | Honeywell Wall-Mount CO₂ Sensor NDIR 0/2–10 V 4–20 mA LCD Display
Honeywell · HMIs & Displays
Description The Honeywell C7233A1008 CO₂ Sensor is a wall-mounted, non-dispersive infrared (NDIR) device engineered for continuous indoor air quality monitoring. Operating on 24 VAC/DC, it provides field-selectable 0/2–10 VDC or 4–20 mA analog outputs and a relay output for ventilation or damper control. This unit combines accurate CO₂ sensing with a clear LCD display for easy reading and system integration in HVAC applications. Technical Specifications Condition New/Never Used Surplus Brand Honeywell Category Sensors & Switches Part Number C7233A1008 Subcategory CO₂ Sensor Sensor Type Non-dispersive infrared (NDIR) Mounting Wall mount, vertical surface Enclosure Material Plastic Measurement Range 0–2000 ppm Accuracy ±(30 ppm + 3 % of reading) Response Time < 20 seconds Output Signals 0/2–10 VDC or 4–20 mA (selectable) Relay Output SPST NO, 1 A @ 24 VDC/50 VAC Power Supply 24 VAC/DC ±20 %, 50/60 Hz Power Consumption 3 W (max) Peak Current 600 mA (20 ms) Operating Temperature 32 °F to 122 °F (0 °C to 50 °C) Storage Temperature -40 °F to 158 °F (-40 °C to 70 °C) Relative Humidity 0–95 % RH (non-condensing) Display LCD with CO₂ ppm and LED indicator Dimensions (in.) 5 ¹⁄₁₆ H × 3 ⁵⁄₃₂ W × 1 D Threshold Settings 800, 1000, 1100, 1200 ppm Calibration Automatic background calibration (ABC) Wiring Terminals 24 AWG maximum Weight 0.55 lbs Information About C7233A1008 The C7233A1008 is part of Honeywell’s C7233 series of NDIR CO₂ sensors designed for commercial and institutional spaces where demand-controlled ventilation is essential. Housed in a durable white plastic enclosure, it mounts on a standard single-gang wall box for clean installation. The sensor features a programmable threshold relay output for direct control of fans or dampers, ensuring energy-efficient ventilation in compliance with ASHRAE indoor air quality standards. Equipped with an automatic background calibration algorithm, the C7233A1008 maintains long-term accuracy—up to ten years—without requiring manual recalibration. Key Features: Non-Dispersive Infrared (NDIR) Technology: Provides precise and stable CO₂ measurements unaffected by other gases or humidity. Dual Analog Outputs: Field-selectable 0/2–10 VDC or 4–20 mA signals ensure flexible compatibility with various control systems. Integrated Relay Output: Activates external ventilation or damper control when preset CO₂ thresholds are exceeded. Automatic Background Calibration: Maintains sensor accuracy for over a decade, minimizing maintenance requirements. Fast Response Time: Provides updated CO₂ readings in less than 20 seconds for real-time environmental control. Wide Measurement Range: Monitors CO₂ concentrations from 0 to 2000 ppm with ±3 % accuracy. LCD Display with LED Indicator: Offers clear readouts of CO₂ levels and alert status for immediate visual feedback. Compact Wall-Mount Design: Installs easily in standard electrical boxes with a smooth, low-profile finish for modern interiors. Selectable Threshold Settings: Adjustable relay trigger points at 800, 1000, 1100, and 1200 ppm for customized ventilation control. Robust Environmental Ratings: Operates reliably from 32 °F to 122 °F (0 °C to 50 °C) and up to 95 % RH non-condensing. The C7233A1008 delivers the accuracy, efficiency, and flexibility required for demand-controlled ventilation in offices, schools, and commercial facilities.
Brand: Honeywell · Category: HMIs & Displays
Key features
- Non-Dispersive Infrared (NDIR) Technology: Provides precise and stable CO₂ measurements unaffected by other gases or humidity.
- Dual Analog Outputs: Field-selectable 0/2–10 VDC or 4–20 mA signals ensure flexible compatibility with various control systems.
- Integrated Relay Output: Activates external ventilation or damper control when preset CO₂ thresholds are exceeded.
- Automatic Background Calibration: Maintains sensor accuracy for over a decade, minimizing maintenance requirements.
- Fast Response Time: Provides updated CO₂ readings in less than 20 seconds for real-time environmental control.
- Wide Measurement Range: Monitors CO₂ concentrations from 0 to 2000 ppm with ±3 % accuracy.
- LCD Display with LED Indicator: Offers clear readouts of CO₂ levels and alert status for immediate visual feedback.
- Compact Wall-Mount Design: Installs easily in standard electrical boxes with a smooth, low-profile finish for modern interiors.
- Selectable Threshold Settings: Adjustable relay trigger points at 800, 1000, 1100, and 1200 ppm for customized ventilation control.
- Robust Environmental Ratings: Operates reliably from 32 °F to 122 °F (0 °C to 50 °C) and up to 95 % RH non-condensing.
Specifications
| Manufacturer part number | C7233A1008 |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Honeywell |
| Category | Sensors & Switches |
| Part Number | C7233A1008 |
| Subcategory | CO₂ Sensor |
| Sensor Type | Non-dispersive infrared (NDIR) |
| Mounting | Wall mount, vertical surface |
| Enclosure Material | Plastic |
| Measurement Range | 0–2000 ppm |
| Accuracy | ±(30 ppm + 3 % of reading) |
| Response Time | < 20 seconds |
| Output Signals | 0/2–10 VDC or 4–20 mA (selectable) |
| Relay Output | SPST NO, 1 A @ 24 VDC/50 VAC |
| Power Supply | 24 VAC/DC ±20 %, 50/60 Hz |
| Power Consumption | 3 W (max) |
| Peak Current | 600 mA (20 ms) |
| Operating Temperature | 32 °F to 122 °F (0 °C to 50 °C) |
| Storage Temperature | -40 °F to 158 °F (-40 °C to 70 °C) |
| Relative Humidity | 0–95 % RH (non-condensing) |
| Display | LCD with CO₂ ppm and LED indicator |
| Dimensions (in.) | 5 ¹⁄₁₆ H × 3 ⁵⁄₃₂ W × 1 D |
| Threshold Settings | 800, 1000, 1100, 1200 ppm |
| Calibration | Automatic background calibration (ABC) |
| Wiring Terminals | 24 AWG maximum |
| Weight | 0.55 lbs |
| Product type | CO2 Sensor |
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