4 Packs, 2 in 1, Smoke and Carbon Monoxide Detector, Smoke Detector Carbon Monoxide Detector Combo,85db Alarm, Digital Display, with Battery, Easy to Install

Additional Details from the Manufacturer

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More features

• 2 in 1 Detection：The product uses high sensitivity photoelectric sensor to detect smoke and high stability electrochemical co sensor to detect carbon monoxide.
• Alarm Sensitivity: When the smoke or CO concentration reaches the alarm sensitivity, the red light will light up and the alarm sound will reach 85 decibels.
• Working State: When the concentration is normal, the screen turns off to achieve power-saving effect, and the green light flashes every few seconds.
• LCD Screen: When the concentration is detected, the screen displays the corresponding number, and the alarm time is based on the concentration.
• Easy Install: The carbon monoxide detector is equipped with 3* 1.5V AA batteries, the no-hole-punch design is more convenient and beautiful.