PTB-18.10 AO2 Oxygen Sensor Detector For Indoor Safety & Emissions Monitoring Features: High quality AO2 PTB-18.10 Oxygen Sensor. Related with the all types equipment of oxygen testing. Widely used in Vehicle Emission Test,Polluted Air Test,Oxygen Quality Test,etc. Specifications: (1) Output: air 9-13mV (2) Range: 0-100% O2 (3) Accuracy: 0.01% O2 (4) Expected life: 20 ℃ in 360000% O2 hours at 40 ℃ 286000% O2 hour or two years of air at STP life (5) T90 Response time: