Gas sensor types / detection range
Toxic (electrochemical): H2S 0–100 ppm; CO 0–1,000 ppm; O2 depletion 0–25% by volume
Operating temperature
Toxic (electrochemical): H2S −40 to +122 °F (−40 to +50 °C); CO −22 to +122 °F (−30 to +50 °C); O2 depletion −22 to +122 °F (−30 to +50 °C)
Combustible (MEMS): −40 to +122 °F (−40 to +50 °C)
Accuracy
Toxic (electrochemical): H2S ±3 ppm or 10% of reading (whichever is greater); CO ±6 ppm or 10% of reading (whichever is greater); O2 depletion within ±0.5% of oxygen content of supply gas
Combustible (MEMS): ±3% LEL (methane); ±5% LEL (hydrogen)
Response time (T90):
Toxic (electrochemical): H2S < 45 s; CO < 29 s; O2 depletion < 15 s
Combustible (MEMS): T90 < 25 seconds
Measurement range
Combustible (MEMS): 0 -100% LEL
Relative humidity range
Combustible (MEMS): 5–100% RH
Zero drift
Combustible (MEMS): 0% per year
Sensor technology
Combustible (MEMS): MEMS combustible sensing element (no calibration adjustments required)
Gas classification
See Product Data Sheet for a list of gas classifications.
