No cell coverage? No problem!
The SentriSmart mobile app can connect with a Bluetooth REALTOR® Lockbox to open the key compartment and release the shackle when there is no cell coverage.
When trying to access a non-Bluetooth lockbox when there is no cell coverage, the SentriSmart mobile application will switch into offline mode. When your device is in this mode, you can obtain a mobile renewal code within the app that you can use to renew your SentriCard in the lockbox.
Click here for information on how to do this with an iPhone and here for Android.