First Alert SA521CN-3ST Smoke Alarm Battery Operated 120 Volt Slip Joint Washers / Nuts Contains Bacillus Thuringiensis (BT) Kurstaki

Contains Bacillus Thuringiensis (BT) Kurstaki

Lifetime mechanical and finish

Designed for use with the 3M Hand-Masker Tool

and 1" horizontal shackle clearance

Used extensively to bond high pressure laminates for counter tops

First Alert SA521CN-3ST Smoke Alarm Battery Operated 120 Volt Slip Joint Washers / Nuts Contains Bacillus Thuringiensis (BT) Kurstaki"FIRST ALERT" SMOKE ALARM 120V AC DC Easily expand an existing interconnected 120V AC system by replacing one alarm in the series with this alarm Add additional battery operated First Alert Onelink enabled alarms to expand without wires Photoelectric smoke alarm reduces nuisance alarms Alarm and low battery silence feature 10 year limited warranty