Spectrex flame detectors are calibrated to real risk substances.
The hydrogen flames are hardly visible to human eye and can still be detected in under
2 sec at 131ft (40m) & 10 sec at 300ft (90m)
Spectrex 40/40D-I-H is especially recommended for
-Hydrogen refueling stations.
-Refineries.
Chemical Plants.
-Hydrogen production sites
For uncompromised flame detection, visit Spectrex.net