Gas Detection / Gas Tables / Cross references
| Gas |
Concentration |
Response |
| Sulphur dioxide (SO2) |
| CO |
50 ppm |
0,3 ppm |
| CO |
300 ppm |
<3 ppm |
| CO2 |
1,5 % |
0 ppm |
| CS2 |
20 ppm |
0,3 ppm |
| CS2 |
2000 ppm |
14 ppm |
| H2S |
15 ppm |
0 ppm |
| H2S |
250 ppm |
0,3 ppm |
| H2SO4 |
saturated |
0 ppm |
| NH3 |
100 ppm |
0 ppm |
| NO |
25 ppm |
<= -2 ppm* |
| NO2 |
5 ppm |
about -5 ppm |
| HCl |
0.5 ppm |
0 ppm |
| ClO2 |
10 ppm |
<= -2 ppm* |
| HF |
70 ppm |
0 ppm |
| Acetylene |
10 ppm |
1 ppm |
| Acetylene |
100 ppm |
10 ppm |
| Toluene |
100 ppm |
0 ppm |
| Isobutylene |
100 ppm |
0.4 ppm |
| 1,3-Butadiene |
5 ppm |
4.3 ppm" |
| Styrene |
200 ppm |
>40 ppm |
Note: All data above are valid for sensors by RAE Systems.
*More negative than -2 ppm
"Cannot be removed by activated carbon because of SO2 loss
| Gas |
Concentration |
Response |
| Phosphine (PH3) |
| Arsine |
150 ppb |
0 ppb |
| Arsine |
2000 ppb |
1200 ppb* |
| Silane |
1000 ppb |
900 ppb |
| Diborane |
300 ppb |
105 ppb |
| Germane |
600 ppb |
510 ppb |
| NH3 |
100 ppm |
0 ppm |
| NO |
100 ppm |
0 ppm |
| SO2 |
5 ppm |
1 ppm |
| CO |
1000 ppm |
1 ppm |
| CO2 |
50 000 ppm |
0 ppm |
| H2 |
1000 ppm |
30 ppm |
| H2S |
25 ppm |
5 ppm |
| HCN |
10 ppm |
0,6 ppm |
| HCl |
10 ppm |
0,2 ppm |
| Methane |
50 000 ppm |
0 ppm |
| Ethylene |
100 ppm |
1,8 ppm |
| Isobutylene |
250 ppm |
0 ppm |
| Hexane, n- |
1500 ppm |
0 ppm |
| Benzene |
100 ppm |
0 ppm |
| Toluene |
100 ppm |
0 ppm |
| Ethylene oxide |
10 ppm |
0 ppm |
| CF2Cl2 |
100 ppm |
0 ppm |
Note: All data above are valid for sensors by RAE Systems.
*Response after 9 minutes exposure. CF = 1,7 average, tested in range 500 to 3000 ppb AsH3.
| Gas |
Concentration |
Response |
| Nitrogen dioxide (NO2) |
| NO |
25 ppm |
2,2 ppm |
| NH3 |
50 ppm |
-0,2 ppm |
| CO |
50 ppm |
-0,2 ppm |
| CO |
300 ppm |
15 ppm |
| H2S |
25 ppm |
-2,2 ppm |
| SO2 |
5 ppm |
0 ppm |
| HCl |
10 ppm |
0 ppm |
| Ci2 |
1 ppm |
-1 ppm |
| ClO2 |
1 ppm |
-2 ppm |
| HNO3 |
1997 ppm |
12,1 ppm |
Note: All data above are valid for sensors by RAE Systems.
| Gas |
Concentration |
Response |
| Nitric oxide (NO) |
| CO |
300 ppm |
0 ppm |
| SO2 |
5 ppm |
0 ppm |
| H2S |
25 ppm |
2 - 9 ppm |
| ClO2 |
1 ppm |
-0,2 ppm |
| NH3 |
50 ppm |
0 ppm |
| NO2 |
5 ppm |
about 0,5 ppm |
| HCl |
10 ppm |
about 0,5 ppm |
| HNO3 |
1997 ppm |
13,2 ppm |
Note: All data above are valid for sensors by RAE Systems.
| Gas |
Concentration |
Response |
| Hydrogen Fluoride (HF) |
| Acetic acid |
100 ppm |
yes |
| SO2 |
20 ppm |
16 ppm |
| Cl2 |
1 ppm |
0,7 ppm |
| CO |
100 ppm |
0 ppm |
| CO2 |
5 000 ppm |
0 ppm |
| H2 |
3 000 ppm |
< 1 ppm |
| Alcohols |
1 000 ppm |
0 ppm |
| Hydrocarbons |
% range |
0 ppm |
| HCl |
10 ppm |
6 ppm |
Note: All data above are valid for sensors by RAE Systems.
| Gas |
Concentration |
Response |
| Hydrogen chloride (HCl) |
| Acetic acid |
100 ppm |
yes |
| SO2 |
20 ppm |
16 ppm |
| Cl2 |
1 ppm |
0,7 ppm |
| CO |
100 ppm |
0 ppm |
| CO2 |
5 000 ppm |
0 ppm |
| H2 |
3 000 ppm |
< 1 ppm |
| Alcohols |
1 000 ppm |
0 ppm |
| Hydrocarbons |
% range |
0 ppm |
| HF |
6 ppm |
10 ppm |
| HNO3 |
1997 ppm |
10 ppm |
Note: All data above are valid for sensors by RAE Systems.
| Gas |
Concentration |
Response |
| Chlorine dioxide (ClO2) |
| Cl2 |
1 ppm |
0 ppm* |
| Cl2 |
1 ppm |
0,4 ppm" |
| ClF3 |
1 ppm |
1 (theor) ppm |
| O3 |
0,1 ppm |
0,03 ppm |
| H2S |
10 ppm |
0 ppm |
| H2S |
25 ppm |
-1,1 ppm" |
| SO2 |
5 ppm |
0 ppm" |
| CO |
1000 ppm |
0 ppm |
| CO |
50 ppm |
0 ppm" |
| CO2 |
5000 ppm |
0 ppm |
| HCl |
5 ppm |
0 ppm |
| HF |
3 ppm |
0 ppm |
| H2 |
10 000 ppm |
0 ppm |
| NH3 |
50 ppm |
0 ppm" |
| PH3 |
300 ppm |
0.3 ppm |
| AsH3 |
1 ppm |
0.8 ppm |
| HCN |
10 ppm |
0 ppm |
| H2Se |
0.1 ppm |
0 ppm |
| NO |
25 ppm |
0.9 ppm" |
| NO2 |
5 ppm |
1,5 to 2,3 ppm" |
| Chloropicrin |
100 ppm |
0 ppm" |
| Hydrocarbons |
% range |
0 % |
| Alcohols |
1000 ppm |
0 ppm |
Note: All data above are valid for sensors by RAE Systems.
*Short exposure of < few minutes of < 100 ppm, with filter
"Onboard filter removed
| Gas |
Concetration |
Response |
| Carbon dioxide (CO2) |
| CH4 |
25 000 ppm |
< 20 ppm |
| Ethane |
10 000 ppm |
< 20 ppm |
| Ethylene |
13 500 ppm |
< 20 ppm |
| Acetylene |
12 500 ppm |
< 20 ppm |
| Propane |
10 000 ppm |
< 20 ppm |
| Acetone |
10 000 ppm |
< 20 ppm |
| Carbon disulphide |
10 000 ppm |
< 20 ppm |
Note: All data above are valid for sensors by RAE Systems.
| Gas |
Concetration |
Response |
| Chlorine (Cl2) |
| NH3 |
65 ppm |
0 ppm |
| CO |
300 ppm |
0 ppm |
| CO2 |
10 % |
0 ppm |
| H2S |
10 ppm |
-0.3 ppm |
| SO2 |
5 ppm |
-1.2 ppm |
| NO |
35 ppm |
< 3 ppm |
| NO2 |
5 ppm |
0.1 ppm |
| N2 |
100 % |
0 ppm |
| H2 |
1000 ppm |
0 ppm |
| HCN |
10 ppm |
0 ppm |
| HCl |
20 ppm |
0 ppm |
| Br2 |
1 ppm |
1 ppm |
| ClO2 |
0.32 ppm |
0.3 ppm |
| Ethanol |
6.6 % |
0 ppm |
| Hydrocarbons |
% range |
0 ppm |
Note: All data above are valid for sensors by RAE Systems.
| Gas |
Concetration |
Response |
| Hydrogen cyanide (HCN) |
| CO |
300 ppm |
cca 0.5 ppm |
| H2S |
15 ppm |
see note below |
| SO2 |
5 ppm |
cca 8 ppm |
| NO |
35 ppm |
cca 3.5 ppm |
| NO2 |
5 ppm |
cca 10 ppm |
| H2 |
200 ppm |
0 ppm |
| Ethylene |
100 ppm |
cca 1 ppm |
Note: All data above are valid for sensors by RAE Systems. Due to a very high cross-sensitivity to H2S, this sensor is unsuitable for use in atmospheres that contain H2S.
