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Malfunction Error

If you see a “Malfunctioned” error for your Smoke Detector, Carbon Monoxide Detector, or Smoke & Carbon Monoxide Detector, that means that the device should be replaced as soon as possible. If your device is still within warranty, please contact our Support team to receive a replacement.

Errors / Warnings

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Smoke & CO Detector

Low Sensitivity Error

If you see the “Low Sensitivity" error for the Smoke Detector, Carbon Monoxide Detector, or Smoke & Carbon Monoxide Detector, that indicates that you need to clean your device so it can detect properly. To Clean the Device: Twist the detector counterclockwise to remove it from its bracket Remove a b

Errors / Warnings

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Smoke & CO Detector

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How To Replace Smoke Detector Battery

The Smoke Detector takes one (1) Panasonic CR-123A Lithium 3V battery and has a life expectancy between 3-5 years depending on usage. To change your Smoke Detector battery, twist it off its bracket and open the back panel. Then, replace the lithium battery and put the device back in place.

Battery / Power

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Smoke Detectors

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Preventing False Alarms From the Smoke Detector

SimpliSafe's Smoke Detectors use photoelectric sensors, meaning they detect smoke through the distortion of a light beam inside the detector. Photoelectric smoke detectors will detect smoke faster than other detector types but can occasionally result in a false alarm. False alarms often occur when t

Errors / Warnings

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Smoke Detectors

What is the Constant Yellow Light on the Smoke and/or CO Detector?

The Smoke Detector, Carbon Monoxide Detector, and 2-in-1 Smoke & CO Detector all feature a Tamper Switch, to make sure that the device is properly secured into its mounting bracket. It’s a small button on the back of the unit that is normally held down by part of the mounting bracket. When it is not

LED / Lights

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Smoke & CO Detector

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Smoke Detector LED Status Light Colors

The Smoke Detector has several light states that reflect the status of the device and change with the presence of smoke within your home. This guide will highlight the various indicators and their meanings. IndicatorMeaningRed flashing light every 5–6 minutes and no soundsNormal.Red flashing light e

LED / Lights

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Smoke Detectors