Leaderboard

Opinion? Surely tests are definitive? In an industry of self certification do we think the manufacturer specs are best to compare the loudness? AG6 110dB@1m Ody Single Piezo 109dB@1m CQR Multibox 115dB@1m Deltabell 104dB@1m These are likely to be peak values and consider the tone, frequency and mounting surface will make a difference to overall volume. Whatever flashing, glowing and noisy piece of plastic you put on the front of your building, it's likely to do it's job if wired correctly.

Not that I know but guessing System - engineer Tamper - engineer PA - manager Line Fail - user / manager / engineer on some Fault - depends on fault AC Fail - user Not that a house basher is affected much by it either