SPECIFICATIONS

Brand Name: GVDA

Certification: CE

Choice: yes

DIY Supplies: ELECTRICAL

Gas Type: Multifunctional

Hign-concerned Chemical: None

Model Number: ST8904

Origin: Mainland China

With LCD Screen Or Not: Yes

Digital 4 in 1 Gas Detector Oxygen O2 Hydrogen Sulfide H2S

Carbon Monoxide CO Combustible Gas LEL Gas Monitor Professional

Gas Analyzer

Product Features

1. Carbon Monoxide(CO): 0-999pm;Resolution: 1ppm

2. Hydrogen Sulfide(H2S): 0-500ppm;Resolution: 1ppm

3. Oxygen(O2): 0-30%;0.1%

4. Combustible Gas(LEL): 0-100%;1%

5. Operation current: 230mA

6. Operation voltage: 3.7V

7. Battery type(include): BL-9C Rechargeable battery

8. Operation humidity: 15%-95%

9. Storage temperature: 0-40°C

10. Short circuit current: ≤3A

11. Maximum open circuit voltage: ≤4.2V

12. Display Type: Segment type LCD

13. Operation temperature: -10°C-50°C

14. Battery working runtime: 6 hours(no alarm)

15. Detection Gas: Carbon Monoxide(CO, Hydrogen Sulfide(H2S),

Oxygen(O2), Combustible Gas(LEL)

16. Warm up time: < 20 Seconds

17. Dimension: 75*138*43mm

Package content

1*Multi-Gas meter

1*Instruction manual

1*USB cable

1*Cloth bag

Professional 4 in 1 gas detector: carbon monoxide(CO), hydrogen sulfide(H2S), oxygen(O2) and combustible gas(LEL)

Main functions: high accuracy sensor,sound and light alarm,low battery indication,backlight display,rechargeable battery etc.

High accuracy sensor

High sensitivity sensor with short response time and high accuracy measurement

4 modes alarm setting

Low alarm set points,high alarm set points,STEL alarm set points,TWA alarm set points

Sound light vibrate alarm

Appendix for carbon monoxide(CO), hydrogen sulfide(H2S), oxygen(O2) and combustible gas(LEL)

HD backlight display

Gas sample pump connect(Optional)

It can extract air to accelerate air flow,and can measure quickly.In addition, a hose can measure the concentration of gas in pipelines or narrow spaces

6 modes can be setting

Gases monitoring mode,View peak value display mode,View TWA mode,Zero calibration mode,CAL gas calibration mode,View STEL mode

3.7V 1800mAh rechargeable battery