Honeywell MS4109F1010 OEM 120V firesmoke 80#2 Possr Act

Genuine Honeywell part MS4109F1010 — an OEM unit intended for 120V fire/smoke applications. Specified as 120V firesmoke with 80#2 Possr Act, this Honeywell MS4109F1010 is supplied as the original equipment manufacturer replacement when this exact part number is required.