Yes, you can use Reolink without internet. All you need is a power source and a device to view the feed on. Reolink cameras are designed to work without an internet connection. They will store footage locally on a microSD card or on their own internal storage. You can also set up Reolink cameras to record to a Network Attached Storage (NAS) device.
Frequently Asked Question
Can I use Reolink without internet?
Reolink WiFi cameras can work without WiFi or Internet connection. 
If you’re looking for a security camera that doesn’t require an internet connection, you may be out of luck. Most security cameras rely on a constant internet connection to function properly. Reolink is no different. While you can technically use Reolink without internet, it’s not really meant to be used that way and you’ll likely run into some issues.