Note: If you intend to use Sentry’s local storage, it is recommended to insert the SD card prior to installing the Sentry video doorbell. Also, please format the SD card to FAT32 before inserting it into the Sentry doorbell.
Slide down to remove Sentry’s base plate, then push back to remove the PIR module from the top. You should see the SD card slot on the top of the camera body. Gently push the SD card all the way in with its metal strips facing toward the back of the doorbell until you hear it click into place. To remove the SD card, push the SD card in and it should be ejected from the slot. After inserting or removing the SD card, replace the PIR module.
You can also watch the installation video to locate the SD card slot.
Note: if you inserted an SD card while the device is powered, you would need to restart (power off then on again) the device for the SD card to be recognized.