You are bidding on one unit only.  I have a total of two available for purchase.

First Alert SC9120B Combination Carbon Monoxide & Smoke Alarm

$26.99 including free shipping for one or contact me if you are interested in purchasing all of them.

Comes with wiring harness but not original packaging or batteries.

Date on all units is 2022 May

Used for approximately one year starting in July 2022 and ending in June 2023 and then stored since then.

All were working when removed from service.

Shipping to the US only.  No APO's or FPO's. We only ship to the address you have listed with eBay or specify during eBay checkout. Items are packed well to ensure they arrive to you safely.

Product Description from First Alert:

Keep your family safe with this hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failure

Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection.

Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85 decibel siren provides a clear, loud warning upon detection

Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected

Simple to use, with a single test/silence button, and side load battery compartment; Tamper resistant locking brackets and universal mounting brackets make installation easy

Rigorously tested to meet UL standards

Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety

BrandBRK/First Alert

ModelSC9120B

MPNSC9120B