ELKRON 80SD2A00121 Methane gas detector complete with base and relay output

The FDMET400 detectors allow you to signal the presence of methane gas in concentrations lower than the lower explosive limit (L.I.E.), i.e. 10%, long before an explosive mixture forms. The detector has a relay alarm output with changeover contact (NO and NC), an opto-isolated NC contact fault output and two terminals for connecting a current absorption line for conventional control panels.