USCG

These detectors had been recalled by the manufacturer in 2019 for failure to activate within their listed temperature range. Though the defective heat detectors identified on board these vessels were Edwards branded 280 series 135° F heat detectors, the Coast Guard wants to advise the entire marine industry that the safety recall also includes heat detectors sold under several different brandings.

https://www.dco.uscg.mil/Portals/9/DCO%20Documents/5p/CG-5PC/INV/Alerts/USCGSA_0825.pdf