Automatic electric pump with pause - pump works automatically so there's not hand pumping, and techs can pause the pump water any time to save battery life
Fieldpiece
Measures flue temp and oxygen percentage. Calculates carbon di oxide percentage and EA percentage
Combustion efficiency - quickly calculated and displayed on the screen, the SOX3's combustion efficiency calculation is great measurement to help determine the health of a furnace
Field-replaceable Oxygen Sensor - The SOX3 Oxygen Sensor indicators tells techs when a new sensor is needed. With calibration data stored on the sensor, it can be swapped out in seconds, so there's never a need to send your instrument in for calibration