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The Commercial Instruments AWG610 is a simple, accurate digital CO monitor and controller designed for grow rooms and controlled environments. It continuously measures CO (PPM) and can automatically control a connected CO device to maintain your target level. A large, easy-to-read LCD screen displays CO concentration, temperature, and humidity, with 1 PPM display resolution for precise monitoring.
The AWG610 includes a remote sensor unit (with hook for hanging at canopy height) and supports both Plant Mode and Human Mode, making it useful for cultivation control or general CO level monitoring with alarms.
Low-drift NDIR CO sensor
High precision temperature & humidity sensor
Large LCD display showing CO, temperature, and humidity
Plant Mode / Human Mode selection
Built-in Day/Night photocell sensor (Plant Mode)
Adjustable CO setpoint
Adjustable deadband control
CO MAX/MIN memory display + reset
Alarm + relay trigger in Human Mode
Manual outdoor calibration function
In Plant Mode, the AWG610 uses its built-in photocell to detect day vs night.
This allows it to automatically stop CO output during darkness (when plants aren't using added CO efficiently), and resume control when light is detected.
In Human Mode, the unit provides CO alarms with adjustable thresholds:
AL1 default: 800 PPM (adjustable 8002500 PPM, steps of 100 PPM)
AL2 default: 2600 PPM (adjustable 26005000 PPM, steps of 100 PPM)
When CO rises above AL1, the buzzer sounds intermittently and the relay is triggered. If CO rises above AL2, the alarm becomes more urgent.
Disclaimer: This device is not intended for workplace hazard CO monitoring or medical/life-sustaining use.
You can set a target CO level using SETPOINT, and adjust the control range using DEADBAND.
Deadband range: 50500 PPM (each press changes by 50 PPM)
Example from manual:
If Setpoint = 1000 PPM and Deadband = 200 PPM, output starts below 800 PPM.
CO Measurement Range: 09999 PPM
Accuracy (03000 PPM): ±50 PPM or ±5% of reading (whichever is greater)
Repeatability: 20 PPM at 400 PPM
Resolution: 1 PPM
Response time: < 1 minute
Warm-up time: < 30 seconds
Temp dependence: ±0.1% of reading per °C or ±2 PPM per °C (referenced to 25°C)
Pressure dependence: 0.13% of reading per mmHg (corrected by user altitude input)
Operating temp: 0°C to 50°C (32°F to 122°F)
Resolution: 0.1°C (0.1°F)
Accuracy: ±0.5°C (±1°F)
Response time: < 10 minutes
Range: 099% RH
Accuracy: ±3%
Resolution: 0.1%
Power input: AC 100300 VAC
Piggyback socket load: 10A @ 250VAC
Sensor unit size: 63 × 99 × 28 mm
Control unit size: 164 × 147 × 47 mm
Weight: 1200 g (includes cables)
Calibration is done by taking the sensor unit outdoors, powering it via 5V USB-C, and holding CALI for 3 seconds. Calibration takes about 15 minutes.
