CR2450 3V Lithium Button Battery
These 3V lithium batteries are used in many different smart home devices. Our CR2450 batteries offer excellent performance without the extra expense of paying for a "brand" name. Storage life is up to 10 years.
WARNING: Button Cell Batteries are Hazardous (new or used). Keep batteries away from children.
ER14250 3.6V Lithium Battery
CR2 3V Lithium Battery
CR123A 3V Lithium Battery
USB 2.0 A Male to Female Extension Cable 15cm
2 Wire Magnetic Reed Switch
Reed switches are used to monitor the opening and closing of windows or doors (or essentially anything that opens or closes). There are two parts to a reed switch... one has a magnet inside, the other a reed switch (which is triggered when the magnet comes close and deactivates when the magnet is pulled away). When wired (DIY with 2 low voltage wires) to a smart home binary sensor input device, you can easily monitor and create automations for doors and windows. Can be mounted with double-sided tape or screws.