WatchGas Replacement O2 Sensor SST-SPARE-O 4-Gas Calibration look at the label on

look at the label on the back or the invoice — MICRO / MINI / PUMP is called out in the product name

the factory can

With ASAP’SORBER energy absorber 40 (B070EA01)

RAE Systems Benzene Separation Tubes are used with the UltraRAE 3000 + and previous generation models to test for specific compounds

WatchGas Replacement O2 Sensor SST-SPARE-O 4-Gas Calibration look at the label onWhen your O2 sensor drifts, you don't replace the whole monitor. You swap the sensor cell. That's the operational advantage of the serviceable WatchGas SST1 line. Traditional single gas monitors are single use when the sensor reaches end of life or a bump test reveals unrecoverable drift, the whole unit gets discarded. The SST1 platform is designed to be maintained: this WatchGas Replacement O2 Sensor drops into the WatchGas SST1 O Serviceable O2 Gas