The O2-A3 Alphasense Oxygen Sensor (formerly known as the AP-0004) is a plug-in replacement sensor for hand-held gas detectors that use an O2-A3 sensor. Gaining precise oxygen measurement is critical for industries that require its use for safety, medical, air quality or specialized process. Note: Once an electrochemical (EC) sensor is purchased from CO2Meter.com and the sealed packaging is opened or the sensor module is installed, it is no longer eligible for return due to the limited operational lifespan that begins upon activation. **Please Note: MOQ 10pcs - 2-4 week lead time** 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 CO2Meter Terms and Conditions Data Sheet (pdf) * Oxygen O2 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.
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