EverActive CR2430-5BB BLISTER PACK 5PCS.

CR2430 everActive batteries are used in hundreds of devices, m.in:
watches and bike computers
remote controls and car key fobs
calculators and scales (pocket and bathroom)
toys, lights, LED decorations
measuring devices (calipers, meters)
medical devices (heart rate monitors, sensors, glucometers)
wireless sensors (temperature, humidity, door/window opening)
energy, water and gas meters
GPS trackers and trackers
alarm systems