OT137 multi-gas detector is equipped with sound and light alarm, which can adapt to concentration in more complex environment. This product is suitable for chemical, pharmaceutical, municipal, water treatment, telecommunications, archaeology, laboratory, refrigeration, wine and other places.
Please select the gases that you want to test from the gas list below;
Gas |
Measuring range |
Optional range |
Resolution |
Response time |
EX(LEL) |
0-100%LEL |
0-100%VOL (infrared) |
1%LEL/1%VOL |
≤15second |
O2 |
0-30%VOL |
0-30%、0-100%VOL |
0.1%/0.01%VOL |
≤15second |
H2S |
0-100PPM |
0-50、200、1000PPM |
0.1/1PPM |
≤15second |
CO |
0-1000PPM |
0-500/2000/5000PPM |
0.1/1PPM |
≤15second |
NO2 |
0-20PPM |
0-50、1000PPM |
0.1/1PPM |
≤20second |
Natural gas |
0-100%LEL |
0-100%VOL |
1%LEL/1%VOL |
≤15second |
NOX |
0-20PPM |
0-50、1000PPM |
0.1/1PPM |
≤20second |
CH4 |
0-100%LEL |
0-100%VOL |
1%LEL/1%VOL |
≤15second |
CO2 |
0-5000PPM |
0-1%、5%、10%VOL (infrared) |
1PPM/0.01%VOL |
≤20second |
NO |
0-250PPM |
0-500、1000PPM |
1PPM |
≤20second |
N2 |
0-100%VOL |
0-100%VOL |
0.1%VOL |
≤15second |
Alcohol |
0-100%LEL |
0-100%LEL |
1%LEL/1%VOL |
≤15second |
SO2 |
0-20PPM |
0-50、1000PPM |
0.1/1PPM |
≤20second |
CL2 |
0-20PPM |
0-10、50、100PPM |
0.1PPM |
≤20second |
dichlorosilane |
0-20PPM |
0-20、100PPM |
1/0.1PPM |
≤20second |
NH3 |
0-100PPM |
0-50、500、1000PPM |
0.1/1PPM |
≤20second |
Silicon tetrachloride |
0-20PPM |
0-20、100PPM |
1/0.1PPM |
≤20second |
H2 |
0-1000PPM |
0-40000PPM |
1/10PPM |
≤20second |
PH3 |
0-20PPM |
0-20、1000PPM |
0.1/1PPM |
≤20second |
HCL |
0-20PPM |
0-20、50、100PPM |
0.1/1PPM |
≤20second |
Acrylonitrile |
0-100PPM |
0-100PPM |
1PPM |
≤20second |
TVOC |
0-100PPM |
0-100PPM |
1PPM |
≤20second |
CLO2 |
0-50PPM |
0-10、100PPM |
0.1PPM |
≤20second |
HCN |
0-50PPM |
0-100PPM |
0.1PPM |
≤20second |
ETO |
0-10PPM |
0-100、1000PPM |
1PPM |
≤20second |
O3 |
0-10PPM |
0-20、100PPM |
0.01/0.1PPM |
≤20second |
CH2O |
0-20PPM |
0-50、100PPM |
0.1/1PPM |
≤20second |
F2 |
0-10PPM |
0-1、10PPM |
1/0.1PPM |
≤20second |
HF |
0-10PPM |
0-1、10、50、100PPM |
0.01/0.1PPM |
≤20second |
Xylene, toluene |
0-20PPM |
50、100PPM |
0.1/1PPM |
≤20second |
Stench |
0-100PPM |
0-100PPM |
1PPM |
≤20second |
For unlisted gas, please contact our sales department |
Detect gas | Ex,O2,CO,H2S,NH3, NO2(Other gases can be customized) |
Measuring range | 0-100%lel, 0-30%vol,0-1000ppm,0-100ppm,0-100ppm,0-20ppm |
Detection principle |
Catalysis/Electrochemistry |
Sampling mode |
Natural diffusion |
Measurement error |
≤3%FS |
Interface definition |
U3 port (USB) |
Display |
Color LCD |
Alarm |
Sound/light/vibration, three level alarm |
Working time |
Combustible gas 8h, toxic gas 200h |
Environment temperature |
(-20~60)℃ |
Environment humidity |
5-90%RH |
Power |
3.7V 2000mA Lithium-ion rechargeable battery |
Explosion proof grade |
Ex ib IIB T3 Gb |
Explosion proof number |
CNex18.4828X |
Ingress protection |
IP65 |
Weight |
400g |
Size |
(155×90×36)mm |
If you need our products please write down any questions, we will reply as soon as possible.