Vernier O2 Sensor

The O2 Gas Sensor measures oxygen concentration in air, and is temperature compensated for use in different environments. It has a wide measurement range, allowing it to be used to study human and cellular respiration. The O2 Gas Sensor also includes a 250 mL bottle that can be used to study the rusting of iron or as a respiration chamber for monitoring plants and insects. Specifications Measurement Range: 0–27% (0-270 ppt) Accuracy (@ Standard Pressure 760 mm Hg): +/- 1% volume O2 Typical Resolution: 0.01% Response Time: ~12 seconds to 90% of final value Warm-Up Time: Less than 5 seconds to 90% of final value Pressure Effect: Directly proportional Vout = Vout (standard) x (P/1013) Pressure range: 0.5 atm to 1.5 atm Output Signal Range: 0 to 4.8 VDC; 2.7 to 3.8 VDC @ 21% O2 Output Impedance: 1 KΩ Input Voltage: 5 VDC +/–0.25 VDC Gas Sampling Mode: Diffusion Normal Operating Temperature Range: 25°C (±5°C) Operating Temperature Range: 5 to 40°C (with calibration) Operating Humidity Range: 0 to 95% RH Storage Temperature Range: –20 to +60°C Dimensions: Sensor Tube: 45 mm length, 28 mm OD; total length: 120 mm