Use these steps to change the battery in your Visonic MCT-370 Door/Window Sensor. You’ll know it’s time to change the battery when you get a notification through your Smart Home Monitoring Touchpad or app and will have 60 days from that point.
Batteries Needed: 1 CR2 3V Lithium battery
Before you begin: Be sure to put your Smart Home Monitoring system in Disarmed mode.