GasLab AlphaSense O2-A3 Oxygen Sensor AP-0004

The AlphaSense O2-A3 oxygen sensor is a plug-in replacement sensor for hand-held gas detectors that use an O2-A3 sensor. Like other electrochemical sensors, it uses less power and has good pressure and temperature independence. Features 0.1 to 20.9% oxygen sensor Does not require calibration Up to 3 year lifespan Small, compact and maintenance free The EC board and development kit converts the sensor’s analog output current to a voltage that is measured by a high-resolution analog to digital converter. The digital voltage is corrected and compensated for temperature and pressure by a microcontroller to produce an accurate gas concentration measured in ppm (parts per million). This can be read as serial UART output or can be logged in internal memory for later retrieval. In addition the board makes it easy to apply zero or span calibration. Models AP-0004 O2-A3 Sensor – Plug-in replacement sensor for many oxygen safety monitors or for integration into OEM oxygen safety products. CM-32921 O2-A3 Sensor Development Kit – Easy to use, simply plug the EC board into your PC via the included Serial UART to USB cable. Use our free GasLab® software to measure and graph oxygen levels, barometric pressure, temperature, and % relative humidity. Includes on-board memory for data logging. CM-32920 O2-A3 Sensor EC Board – Same functionality as the development kit without USB cable or software. Specifications Measurement Range: 0.1-20.9% Oxygen Output: 80-120 uA @ 20.9% Oxygen 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 unti 85% original Output of 20.9% Analog Output: 0-3VDC Smart EC Board Functionality Adds Temperature, %RH Sensor Barometric Pressure Sensor 64K memory for time-stamped data logging of all measurements Serial UART output RS485 output with optional RS485 cable Development Kits Adds Serial UART to USB cable Free Windows software for real-time measurements, graphing Electrical/Mechanica l Dimensions (sensor): 17.4mm x 20.3mm Dimensions (sensor + PCB): 40mm X 25mm x 29mm (LxWxH) Power Input: 3.3-5.5 VDC Current Consumption: 10ma peak, < 3mW average Warranty 90 days. See terms and conditions.