For my sins, I`ve fitted about a dozen of the "infinite" units; and haven`t had a single issue with any of them post-install.
Two had PIRs that said they were communicating; just didn`t send an alrm signal if you danced a jig in front of it! - change gubbins & reprogram - sound as a pound.
Given the choice, I`d fit wired, as IMO they`re generally superior; and easier to set up.
Then again, did a commercial premises with 20-odd detectors, which was the "karizma" from ADE. OMG, what a faff. The detectors weren`t too bad; with digitally encoded "biscuits" to stuff inside, making them addressable. Programming was a cow; and after a couple of months, it developed a logic fault whereby the panel swore blind the main rear tamper switch was active. Soddin` wasn`t though - ADE weren`t interested, and the whole panel was changed eventually (not by me, either!)
Two had PIRs that said they were communicating; just didn`t send an alrm signal if you danced a jig in front of it! - change gubbins & reprogram - sound as a pound.
Given the choice, I`d fit wired, as IMO they`re generally superior; and easier to set up.
Then again, did a commercial premises with 20-odd detectors, which was the "karizma" from ADE. OMG, what a faff. The detectors weren`t too bad; with digitally encoded "biscuits" to stuff inside, making them addressable. Programming was a cow; and after a couple of months, it developed a logic fault whereby the panel swore blind the main rear tamper switch was active. Soddin` wasn`t though - ADE weren`t interested, and the whole panel was changed eventually (not by me, either!)