INFWIN DigiGas-CD Carbon Dioxide Sensor

INFWIN DigiGas-CD Carbon Dioxide Sensor

MCCI P/N
123004237
INFWIN P/N
DigiGAS-CD-AAAB002
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$ 119.00
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Contact sales

The INFWIN DigiGas-CD is a carbon dioxide (CO2) sensor with SDI-12 or RS485/Modbus-RTU output, built around a SENSIRION SCD41 photoacoustic NDIR sensing element for high accuracy in a small form factor. Power supply, output interface, connector type, and cable length are configurable via ordering code - the default variant (DigiGas-CD-AAAB002) ships with a 0–5000 ppm CO2 range, RS485/Modbus-RTU output, 9–28V DC supply, a cold-pressed terminal connector, and a 2 m cable.

Alongside CO2, the sensor reports air temperature and humidity with automatic compensation. Reverse power protection and built-in TVS/ESD protection are included.

Key Features

  • Photoacoustic NDIR CO2 sensing: Built around the SENSIRION SCD41 sensor for high accuracy at a competitive price
  • Long sensor life: Rated for 10 years of service, with temperature and humidity compensation
  • Triple measurement: CO2 concentration, air temperature, and air humidity
  • Digital output: SDI-12 (V1.3) for universal datalogger compatibility and low-power use, or RS485/Modbus-RTU for long cable runs or multi-sensor networks, both with built-in surge protection
  • Compact size: 111 × 25.5 mm sensor body
  • Reverse power protection: Built-in TVS/ESD protection
  • Connector options: Cold-pressed terminal or stripped & tinned lead wires
  • Configuration utility: SensorOneSet software (RS485) or SensorOneSetSDI12 software (SDI-12) included for sensor configuration
  • Cable length: 2 m standard; custom lengths available, up to 5 m maximum

Applications

  • Smart agriculture
  • Greenhouse monitoring
  • Air conditioning and ventilation control
  • Routine weather monitoring
  • Scientific research

Important Notes

  • Custom cable lengths are limited to a maximum of 5 meters for this sensor.
  • IP50 rated - protected against dust ingress and some direct contact, but not rated for washdown, submersion, or outdoor exposure to rain.
  • Wall mounting installation only - not designed for burial or immersion.
  • Operating environment must be non-condensing.
  • CO2 accuracy varies by concentration - tightest at low readings (400–1000 ppm) and widest at high readings (2001–5000 ppm); see specification table for exact figures at each range.

Specifications

CO2
Range 0–5000 ppm
Resolution 1 ppm
Accuracy ±(50 ppm + 2.5% of reading), 400–1000 ppm
±(50 ppm + 3% of reading), 1001–2000 ppm
±(40 ppm + 5% of reading), 2001–5000 ppm
Air Temperature
Range −10°C to +60°C
Resolution 0.1°C
Accuracy ±0.8°C (15–35°C); ±1.5°C (−10–60°C)
Air Humidity
Range 0–100%
Resolution 0.1%
Accuracy ±6% RH (15–35°C, 20–65% RH); ±9% RH (−10–60°C, 0–100% RH)
Electrical
Output interface RS485 (Modbus-RTU) or SDI-12, V1.3 (selectable via ordering code)
Power supply 9–28V DC
Quiescent current SDI-12: <10 µA; RS485: <10 mA
Measuring current 50 mA @ 12V DC during a 1000 ms measurement; 5000 ms measurement interval
Mechanical
Dimensions 111 × 25.5 mm (sensor body, length × diameter)
IP rating IP50
Connector Cold-pressed terminal or stripped & tinned lead wires (selectable via ordering code)
Cable length 2 m standard; custom length available, max 5 m
Installation Wall mounting
Environmental
Operating conditions −10°C to +60°C; 0–95% humidity, non-condensing

Ordering Code Guide

Code 1: Product Series DigiGas-CD DigiGas-CD, CO2, air temperature, humidity sensor
Code 2: Range and Accuracy A 0–5000 ppm (see specification table for accuracy by range)
Code 3: Power Supply A
X		 9–28V DC
Customize
Code 4: Output Interface A
B		 RS485 (Modbus-RTU)
SDI-12
Code 5: Connector B
C		 Cold-pressed terminal
Stripped & tinned lead wires
Code 6: Cable Length 002
XXX		 2 meters
Custom (XXX = length in meters, max 5 m)

Default Variant: DigiGas-CD-AAAB002

Measuring parameters CO2, air temperature, and air humidity
Range and accuracy 0–5000 ppm
Power supply 9–28V DC
Output interface RS485, Modbus-RTU
Connector Cold-pressed terminal
Cable length 2 meters

Custom variants (power supply, output interface, connector, cable length) are available; contact us to discuss your requirements.

Technical Documents

Modbus is a registered trademark of Schneider Electric. SDI-12 is a trademark of the SDI-12 Support Group. SENSIRION is a registered trademark of Sensirion AG. INFWIN is a registered trademark of Dalian Endeavour Technology Co., Ltd. MCCI and MCCI Catena are registered trademarks of MCCI Corporation. All other trademarks are the property of their respective owners.