AlphaSense O2-A3 Oxygen Sensor

The AlphaSense O2-A3 oxygen sensor is a plug-in replacement sensor for hand-held gas detectors that use an O2-A3 sensor.  Verify the sensor you are replacing has AlphaSense O2-A3 printed on the side before ordering. Due to our low prices we cannot accept returns for the wrong sensor. Features 0.1 to 20.9% oxygen sensor Does not require calibration Up to 3 year lifespan Small, compact and maintenance free Measurement Range: 0.1-20.9% Oxygen Output @ 20.9% Oxygen: 60-85 uA Output @ 0% O2: < 2.5 uA Response Time: < 15 sec. t90 (s) from 20.9% to 0% Linearity: 0.6% O2 deviation @ 10% Output drift: < 1% change @ 3 months Operating life: > 36 months until 85% original Output of 20.9% Electrical/Mechanical Dimensions (sensor): 17.4mm x 20.3mm Warranty 90 days. See terms and conditions.  Data Sheet (pdf)  Voltage Output for Applications (pdf) Sensor Pin Sockets - Manufacturers do not recommend soldering to the pins. Pin sockets can be purchased from Andon distributors. Click here to search for your sensor's socket. Select the brand PDF, find your sensor, then search for the Andon part number for your sensor's socket.