Manator
©Honorary Essex Boy™
They could use one of theseSo, how do they hush smoke detectors then?
http://cgi.ebay.co.uk/AICO-Ei1529rc--Alarm-Remote-TEST,-HUSH-%26-LOCATOR-SWITCH_W0QQitemZ290359666316QQcmdZViewItem?rvr_id=132775709900&rvr_id=132775709900&cguid=ca087ade12a0a0aad4607520ffff8e46