Ruuvi CR2477T Battery (Shipping only to Finland)
High quality CR2477T battery
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These custom-made high quality lithium batteries offer a wide operating temperature range from -40°C to 85°C. (Standard batteries shipped with Ruuvi sensors work from -20°C to 70°C.)
Note that due to global shipping restrictions, batteries can be delivered only to Finland!
See a video how to change the battery here