Test the electronics of the detector. There were no replacements for this model as. Webpropane gas detectors this unit will not work without power. Examples causing no power are: Cut lead wires, faulty circuit connection, a blown or missing fuse, improper. This alarm detects both co. Webjun 3, 2020 · i have a safe t alert propane gas alarm by mti indus. Just picked up our 5th wheel from 7 months of storage. Both propane tank valves have been.