·Sensor type: electrochemical type from UK
·Measuring range:0~2ppm，5ppm
·accuracy: ±30ppb or ±10% reading
·Resolution: 0.01ppm
·Rise time:<120s
·Working temperature: -20 to 45℃
·Working humidity :R.H. 10%~90%
·Power supply: 3.7V0.8Ah(Lithium battery)
