Sensorix PH3 20 LT Electrochemical Phosphine Sensor
Electrochemical phosphine gas detection component for industrial safety and process monitoring.
Manufacturer: Sensorix GmbH (Germany)
Official Manufacturer Information
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Range and interfering-gas characteristics must be checked for the exact sensor code and current revision.
Original manufacturer model check
Current official Sensorix PH₃ 20 LT OEM sensor lists a 0–20 ppm PH₃ range, response T90 ≤45 s and −20…+40°C operating window. It is not a complete ATEX/IECEx certified detector.
Sensorix PH₃ 20 LT — quantitative electrochemical measurement specifications
Unlike the separate PH₃ 1 (0–1 ppm) product, the PH₃ 20 LT measures 0–20 ppm phosphine with an ionic-liquid three-electrode electrochemical cell. Sensorix’s September 2026 original product announcement supplies model-specific electrical performance:
| Sensorix parameter | Value and engineering interpretation |
|---|---|
| Sensitivity | 1,100 ±500 nA/ppm; calibrate the actual shipped cell, not a generic fixed nA-to-ppm coefficient. |
| Response | T90 ≤45 s at 2-minute gas exposure; add inlet and processor delays before promising alarm speed. |
| Clean-air baseline | <±0.02 ppm equivalent at midpoint sensitivity; not an automatic certified detection limit. |
| Linearity / repeatability | Linearity <10% full scale; repeatability <2% under maker conditions. |
| Service life / drift | Expected >18 months in air; output drift <10% per 6 months; require field maintenance and calibration schedule. |
| Ambient | −20…+40°C; check humidity and gas cross-sensitivity for grain fumigation or semiconductor use. |
Selection: Industrial re-entry after fumigation or process-gas monitoring needs documented detector-level gas calibration, concentration threshold, maintenance and relevant safety approvals. A bare cell cannot inherit ATEX/IECEx certification of an unrelated finished monitor.
Sensorix PH₃ 20 LT 2026 technical introduction · manufacturer PH₃ model comparison