INFWIN DigiGas-OX Oxygen Concentration and Partial Pressure Sensor

$ 259.00 USD

Sale Sold out

INFWIN P/N DigiGAS-OX-AAAB002

Quantity

SKU:123004238

Out of stock — Available on backorder

The INFWIN DigiGas-OX is an oxygen sensor with SDI-12 or RS485/Modbus-RTU output, measuring ambient oxygen partial pressure (ppO2) and concentration using luminescence quenching - an optical technique, not electrochemical. Power supply, output interface, connector type, and cable length are configurable via ordering code - the default variant (DigiGas-OX-AAAB002) ships with a 0–300 mbar (0–25%) range, RS485/Modbus-RTU output, a cold-pressed terminal connector, and a 2 m cable.

Alongside oxygen, the sensor reports temperature and barometric pressure, which factor into the concentration calculation. Reverse power protection and built-in TVS/ESD protection are included.

Key Features

Optical oxygen sensing: Built around an SST oxygen sensor using luminescence quenching, not an electrochemical cell
Long sensor life: Rated for more than 2 years of service, maintenance-free
Triple measurement: Oxygen partial pressure/concentration, temperature, and barometric pressure
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

Scientific research
Air conditioning and ventilation control
Routine weather monitoring
Environmental monitoring
LoRaWAN IoT deployments via the Catena-5310 or compatible RS485/Modbus-RTU/SDI-12 gateway

Important Notes

Oxygen concentration (%) accuracy depends on both the oxygen partial pressure accuracy and the barometric pressure accuracy - it is not a single fixed figure.
Rated operating temperature range for the sensor is narrower than most of INFWIN's other outdoor sensors: 10°C to 45°C.
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.

Specifications

Oxygen
Partial pressure range	0–300 mbar
Partial pressure resolution	0.1 mbar
Partial pressure accuracy	<2% FS
Concentration range	0–25%
Concentration resolution	0.01%
Concentration accuracy	Determined by the combined accuracy of oxygen partial pressure and barometric pressure
Temperature
Range	−10°C to +60°C
Resolution	0.1°C
Accuracy	±2°C
Barometric Pressure
Range	500–1200 mbar
Resolution	1 mbar
Accuracy	±5 mbar
Electrical
Output interface	RS485 (Modbus-RTU) or SDI-12, V1.3 (selectable via ordering code)
Power supply	9–28V DC
Quiescent/average current	SDI-12: <10 µA @ 12V DC; RS485: <10 mA @ 12V DC
Measuring current	<20 mA @ 12V DC; 1000 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 +45°C; 0–95% humidity, non-condensing

Ordering Code Guide

Code 1: Product Series	DigiGas-OX	DigiGas-OX oxygen partial pressure and concentration sensor
Code 2: Range and Accuracy	A	0–300 mbar (0–25%), <2% FS (see specification table for full accuracy)
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-OX-AAAB002

Measuring parameters	Oxygen partial pressure/concentration, temperature, and barometric pressure
Range and accuracy	0–300 mbar (0–25%), <2% FS
Power supply	9–28V DC
Output interface	RS485, Modbus-RTU
Connector	Cold-pressed terminal
Cable length	2 meters