I’m a heavy SmartThings user. Sometimes it can be pretty tricky knowing what batteries I need when I get notifications from different sensors telling me that they are running low and need a replacement.

Battery Cheat Sheet:

Sensor Location Battery
SmartThings Multi-Purpose Sensor Doors / Windows / Garage Doors 2450
SmartThings Water Leak Sensor Sinks / Appliances / Water Heater / Furnace CR2 Lithium 3V
SmartThings Motion Sensor Laundry Room CR2477
Fibaro FGMS-001 Motion Sensor Bathroom / Hallways CR123A
ECO Motion Sensor Master Closet CR123A