INFWIN DigiGas-CD Carbon Dioxide CO2 Sensor

$ 119.00 USD

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INFWIN P/N DigiGAS-CD-AAAB002

Quantity

SKU:123004237

Out of stock — Available on backorder

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
Excellent price-performance ratio
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
LoRaWAN IoT deployments via the Catena-5310 or compatible RS485/Modbus-RTU/SDI-12 gateway

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