Multi Gas monitor
Model : Tetra 3
Gases include the most common four (carbon monoxide, methane, oxygen and hydrogen sulphide), but also an expanded range: ammonia, ozone, sulphur dioxide, H2 filtered CO (for steel plants) and IR carbon dioxide (for safe area use only). Gas Range Typical Alarms
Flammable
0-100% LEL
20%
Oxygen
0-25%
19/23.5%
Hydrogen sulphide (H2S)
0-100ppm
5ppm
Carbon monoxide (CO)
1-500ppm
30ppm
Sulpher dioxide (SO2)
0-20ppm
1ppm
Ozone (O3)
0-1ppm
0.1ppm
Ammonia (NH3)
0-100ppm
25ppm
*Carbon dioxide (CO2)
0-5%
0.5ppm