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.