With the INTACT battery guard and the free App for Apple (Iphone 4S and newer) or Android (4.3 or higher), you can easily check the voltage via bluetooth.
Works with any vehicle battery (6V / 12V / 24V).
Unmounting or physical access to the battery is not necessary.
Battery usage of just approx. 2mW.
Quick and easy to set up.
2) CONNECT BATTERY-GUARD
Attach the intAct Battery-Guard to the battery terminals. Fix the transmitter to the clean battery using the adhesive film provided.
3) ACTIVATE BLUETOOTH
Activate Bluetooth on your smartphone and then open the App. Bluetooth search mode is not required.
Assign the transmitter a name and select the correct nominal voltage. You can save up to 5 values for each transmitter.