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The 123 standard 3 volt for the contact and motion, do not know on the smoke as I do not have one yet.
Sorry, there was a problem. Please try again later.Hi Gabe, Thanks for reaching out. Our sensors use 3V Lithium Batteries. https://shop.ring.com/collections/security-system/products/alarm-contact-sensor Thanks, Kaitlyn R., Customer Satisfaction Specialist [email protected]
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