Weight

About 151 g

Color

Yellow / Blue

Sensor

Electrochemistry method

Detection gases

Standard is 【EX+O2+CO+H2S】

Response time

≤30s(O2)；≤40s(CO)；≤20s(EX);≤30s (H2S)

Time display

Year, month, day, and clock display function

Display

Dot matrix liquid crystal   display in English, High brightness white backlight

Alarm ways

voice alarm More than 90 dB (10   cm away from instrument), light alarm Red LED

Work mode

continuous work

Temperature

- 20 ℃ ~ 50 ℃

Humidity

15% ~ 95% RH (No condensation)

Power supply

lithium battery power supply (1500 mAh)

Charging time

3 ~ 5 hours

Charging voltage

DC5V