![This heat detector in my house started beeping this morning. I tried to remove it to replace the batteries, but I have no clue what's going on in here. Is it safe This heat detector in my house started beeping this morning. I tried to remove it to replace the batteries, but I have no clue what's going on in here. Is it safe](https://i.redd.it/s7bxl8igrr281.jpg)
This heat detector in my house started beeping this morning. I tried to remove it to replace the batteries, but I have no clue what's going on in here. Is it safe
58°C Fixed Temperature Thermal Detector | Heat Detectors | Sensors | Heat Detectors | Honeywell Building Solutions
![BRK HD6135FB Heat Alarm,135° Fixed and Rate of Rise, 120V AC, 60Hz Wire-in, Rate-of-Rise, with 9V Battery Backup BRK HD6135FB Heat Alarm,135° Fixed and Rate of Rise, 120V AC, 60Hz Wire-in, Rate-of-Rise, with 9V Battery Backup](https://cdn.adiglobaldistribution.us/pim/500X500/10014/1020280537_lg.jpg)