First Alert SCO5 Smoke & Carbon Monoxide Alarm Open Box w/ New Batteries

From a Trusted Seller with 100% Positive Feedback A+++ ✳️ Condition: Open Box – Excellent, Never Installed ⚙️ Model: First Alert SCO5 🔋 Includes 2 brand new Duracell AA batteries (nb) 🚨 Type: Smoke & Carbon Monoxide Alarm 🏠 Ideal for single-station home safety 🔧 Features: Dual detection for smoke and CO LED indicators for smoke, CO, and power One-touch test/silence button ⚠️ Alarm Signals: 4 beeps = CO warning 1 chirp/min = Replace battery 3 chirps/min = Malfunction 5 chirps/min = End-of-life alert 🌫️ Sensor Range: 1.02–2.25%/ft. obs. 🎯 CO Response Time: 70ppm (60–240min), 150ppm (10–50min), 400ppm (4–15min) 🛠️ Mounting Bracket: Included ✅ Certified: UL 217, UL 2034, ETL Listed 📆 Mfg Date: April 27, 2021 Ready to install and protect right out of the box.