Oxygen Sensor

The Oxygen Sensor measures the amount of Oxygen (O₂) gas in air.

THERMISTORS VERSUS THERMOCOUPLES

Apogee Instruments offers Oxygen Sensors with either a thermistor or thermocouple for sensor temperature measurement.

We recommend thermistors for sensor temperature measurement of the Oxygen Sensor.

THERMISTORS

+ no reference temp.

+ larger signal

+ single-ended channel

+ inexpensive, rugged wire

- excitation voltage

- multiple steps in datalogger program

THERMOCOUPLES

- needs accurate ref. temp.

- smaller signal

- differential channel

- expensive wire

+ self-powered

+ easy program

$259

$30

Model SO-110:

Model AO-001:

SO-series

MO-series

SO-series

MO-series

Products >> Oxygen Sensors and Meters >> Technical Information >> Thermistors versus Thermocouples