What battery does a Switchbot Contact Sensor take?
AAA
2 × AAA batteries
The SwitchBot Contact Sensor uses 1 CR2032 battery. Battery life is approximately 1 year. If your SwitchBot Contact Sensor is showing offline in the app or not triggering automations, replace the CR2032 battery.
If your Switchbot Contact Sensor has stopped working or is unresponsive, replacing the batteries will usually fix it. Tap the button below to find the right AAA batteries on Amazon.
Also known as: LR03, MN2400, Micro
Buy AAA batteries on Amazon
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