GTX-GN-503FF Please log in to see price or purchase this item Quantity discounts available QuantityPrice SKU: GTX-GN-503FF MANUFACTURER: Gentex Product Details Single/Multiple Station Smoke/Carbon Monoxide Alarm, Universal Mount, Temporal 3 and Temporal 4 Audible Signal, 2 Sets Form A/C Relay Contacts Product Details Back Product DetailsSingle/Multiple Station Smoke/Carbon Monoxide Alarm, Universal Mount, Temporal 3 and Temporal 4 Audible Signal, 2 Sets Form A/C Relay Contacts