·Sensor type: electrochemical type

·Resolution: 1ppm

·Measuring range:4000ppm/40000ppm

·Degree of accuracy: ±3%

·T80 response time: ≤60 seconds 

·R.H:15%~90%,non-condensing

·Working temperature: 0 to 45℃

·Computer interface: RS232

·Power supply: 1.5V x 2AA