Smoke & CO Combo Detector Battery LCD Display 4-Pack

A battery-powered combo detector that watches for both smoke and carbon monoxide with independent sensors — sold as a 4-pack to cover the whole rig or home. No wiring required: mount it anywhere in about a minute, and it keeps protecting you even during a power outage.

Features

• Dual sensors: photoelectric smoke and electrochemical CO, for fast, accurate detection
• 85 dB sound-and-light alarm; CO uses a 4-beep pattern with digital value, smoke a continuous tone
• LCD shows real-time CO concentration in PPM and a low-battery icon (lights up over 40 PPM)
• Runs on 3 AA batteries with a low-battery chirp
• One-touch test/reset; mounts with included bracket, screws, and anchors

What's included

• 4 × smoke/CO combo detectors with mounting hardware

Specifications

• Power: 3 × AA batteries
• Alarm: 85 dB
• Quantity: 4-pack

Test weekly. For homes, apartments, and RVs. Ships from Upland, CA.