The HiSPEC HSSA/PE/RF10-PRO is a mains-powered smoke detector alarm with wireless interconnection capability, test and hush buttons and lithium-battery backup, manufactured by HiSPEC. The HSSA/PE/RF10-PRO is suitable for both domestic and commercial applications where multiple alarms are needed, especially in dusty, humid areas where there is less danger of smouldering fire due to furniture, e.g. kitchens and lofts. Its small size (at only 120mm in diameter) means it will fit unobtrusively into almost any setting but is easily heard, with an 85dB alarm at 3 metres. These smoke alarms are interconnectable with up to 19 other HiSPEC alarms through the mains, or remotely using integrated RF technology (requires HSSA/CU/RF10-PRO, sold separately). They have distinct buttons for Test and Hush to make testing nuisance alarms easier and is tamper-proofed to prevent vandalism. Furthermore, the HSSA/PE/RF10-PRO features a 10 year sealed lithium battery backup in case of mains failure and come with a fast fix base meaning there’s no need to worry about a complicated installation. · · · Wirelessly interconnect up to 20 detectors · · 10yr Sealed Lithium Battery Backup · · Loud 85dB alarm · · Fast Fix base included · · Insect proof · · Test function and hush feature · · Tamper proof · · Compatible with Hispec Control Unit · · 5 Year Warranty