First Alert HD6135FB Hardwire Heat Alarm With Battery Backup Bent Door widths of 1-1/4" or

Door widths of 1-1/4" or 1-3/4"

Lid snaps tight

Auto safety shut-off function engages when container or lid is removed

Specially designed for use on portable machines (angle grinders)

bottling machinery

First Alert HD6135FB Hardwire Heat Alarm With Battery Backup Bent Door widths of 1-1/4" orHighlights: 120 volt AC DC with 9 volt battery backup 135 degrees Fahrenheit fixed rate and rate of rise temperature sensing Microprocessor controlled for fewer nuisance alarms The test silence button both silences a non threatening alarm or low battery warning and allows you to test the unit's functionality Latching alarm indicator which automatically identifies which unit initiated the alarm 120 volt AC inter connectable (with maximum 18 compatible