Heat detector XH01-W (1-pc) has a 10-year built-in lithium battery (CR123A) and comes with a 5-year product warranty. Can be used if you want to expand your wireless smoke alarm system XS01-W.
You should never use only heat detectors in buildings where people sleep, then the units must be combined with smoke detectors (XS01-W)
The device is wirelessly connectable via radio where configuration in a closed group ensures that other devices within the signal range do not affect the configured group in the event of a test or sharp smoke alarm. Therefore, it is also suitable for larger combined systems with up to 24 units per group.