Reliable: Equipped with a reliable and extended-life zirconium oxygen sensor.

Intelligent: Equipped with high-performance Single Chip Microcontroller.

Improved measurement-accuracy and repeatability.

Voice alarm Function is realized.

Operation is fool-proof;

Minimum calibration and maintenance needed;

Specifications:

Measuring ranges: 0~30% (model 1); 0~100% (model 2)

Accuracy: ±0.5%O2(≤30%); ±2%F.S(30%~100%)

Lifetime of sensor: ≥2 years (in air)

Resolution: 0.1%

Audible Alarm: Buzzer and twinkling alarm system (Upper/lower limit alarm-points can be pre-set by user).

Response Time: Less than 30 seconds.

Operation Temperature: 5~40 degree C.

Electric Power: 220V AC or 120V AC