Feature:

• [Combination Smoke and Carbon Monoxide Detector]: Equipped with both photoelectric smoke sensor and electrochemical CO sensor that work independently of each other; detects both fast and slow-burning fires, and instantly notifies you when dangerous smoke or CO concentration is detected while minimizing false alarms; provides the ultimate protection from 2 deadly threats, all contained in 1 unit.
• [LCD Display and Low Battery Warning]: Clearly indicates real-time carbon monoxide (CO) concentration in the surrounding air, as well as Low battery reminder, when the power is close to run out,the red light flashes every 10s and the LCD displays “LB”,you won’t miss the chance to change the new Battery.
• [Test/Silence Button]: Tests the unit for proper operation and and to easily silence the alarm when false alarms occur, resets the smoke and carbon monoxide alarm, Alarm Volume: Loud > 85dB at 3 meters. Loud 80-decibel alarm is designed to be heard easily.
• [Easy Installation without Hardwired]: Requires no rewiring; easy to mount on any wall or ceiling with the included 3*AA Batteries, screws and anchor plugs.
• [100% Guaranteed Quality]:all ROEY carbon monoxide detector and smoke alarm are rigorously tested to meet UL 217 and UL 2034 safety standards; comes with 1 year free warranty and a lifetime customer support.Please read the instructions carefully before installation.

Specation:

• Power Supply: 4.5V AA battery(include)

• Alarm Noise Level: 80 dB at 9.84 ft (3 m)

• Safety Standards: UL 217 & UL 2034

• Smoke Sensor Type: Photoelectric

• CO Sensor Type: Electrochemical

Packing List:

• 2 × Screw
• 2 × Anchor Plugs
• 1 × User Manual
• 3 × 1.5V AA battery
• 1 × Alarm Unit