Sensorix O2 30 Uni Electrochemical Oxygen Sensor

Electrochemical oxygen sensor with selective detection for portable/fixed applications.
Manufacturer: Sensorix GmbH (Germany)
Official Manufacturer Information
Sensorix gas-sensor portfolio →
Range and interfering-gas characteristics must be checked for the exact sensor code and current revision.
Model-Specific Technical Verification
Sensorix O₂ 30 Uni: 0–30% O₂; response T90 ≤10 seconds; −40 to +60°C; 3-electrode lead-free electrochemical cell. Universal OEM integration; available in multiple physical formats.
Sensorix official O₂ 30 Uni datasheet source and format options →
OEM element specifications do not establish ATEX/IECEx approval of any complete gas detector.
Original manufacturer model check
Sensorix O₂ 30 UNI version offers an OEM form factor distinct from O₂ 30 FIX and PORT. Final instrument certification and compatibility are separate from component specification.
O₂ 30 Uni — source-verified electrochemical engineering and selection
Sensorix’s 2 July 2026 manufacturer comparison identifies O₂ 30 Uni as a lead-free, three-electrode oxygen cell. Balanced, multipurpose OEM integration across fixed and portable instrument platforms. It is an electrochemical component whose host circuit must hold the specified −600 mV bias and convert cell current into a correctly calibrated oxygen percentage.
| Parameter | Official manufacturer value |
|---|---|
| Measuring range / T90 | 0–30 vol% O₂; T90 ≤10 seconds under manufacturer conditions |
| Ambient / intended lifetime | −40 to +60°C; listed operating life 60 months (application qualification still required) |
| Three-electrode bias | −600 mV applied to sensor cell by suitable potentiostat electronics; not a digital UART or I²C module |
| Typical sensor-current comparison | ~100 µA in air (manufacturer comparison); these are maker’s in-air comparison values, not total battery power |
| Mechanical variants | 4S, 7S, Classic 4/8-pin, Smart (EPROM), Mini; exact pinout/size depends on ordered construction |
Practical selection and gas-alarm commissioning
The universal model balances long-life electrochemical sensing and electronics compatibility. Verify working-electrode bias, transimpedance gain, noise and detection threshold after choosing 4S/7S/Classic/Smart/Mini packages. “Universal” does not mean universal pinout or preapproved fit to every detector.
Cross-family comparison: Uni is the ~100 µA reference for Sensorix’s July 2026 family comparison; Port is lower-current, Fix prioritizes maximum sensitivity. Confirm calibration gas, zero/span interval, electrochemical cross-response, storage conditions and lead-free electrolyte handling from the ordered format datasheet, which is not provided as a publicly downloadable numerical accuracy table on the maker’s range page. Never claim ATEX/IECEx approval of the finished detector on the basis of the cell alone.
Sources: Sensorix O₂ 30 manufacturer comparison, July 2026 and Sensorix exact-model product list and packaging formats.