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It is a GJ-01C gas alarm monitor, which Geopal developed and produced in the early 1990s. The gas alarm detects a possible release of methane and is still in use!
The GJ-01C can be said to be the Nokia 3310 of gas alarms, because the same model is still in use by one of our other customers.
Do you also want your next gas alarm to function for the next 30+ years? See our selection of gas detectors and gas alarms and contact us for more information.
