Gentex HD135 Heat Alarm, 120V Hardwired 135 Degree Interconnectable w/9V Battery Backup & T3 Horn (917-0023-002)

hello my name is rich Howard owner of architectural Builders Supply in this video is to bring you a closer look at the Gentex this is their part number nine one two three HF photoelectric smoke alarm 120 volt AC point zero seven amp sixty Hertz 135 degree Fahrenheit isolated thermal tandem interconnect up to six unit form AC relay with nine volt battery so let's take it out of the box we're going to take a look at the item itself a little visual review of the item then of course look at the installation instructions obviously your mounting bracket and your template cast aluminum mounting bracket plug in connector 12 wire now let's take a look at the installation instructions which are included here in okay the 9123 is the 120 volt version 60 Hertz with temporal three-horn it is a smoke alarm of the photoelectric type for use as an evacuation device in residential applications commercial