The ML-525 data loggers are equipped with a soldered eSIM that includes a 500 MB free data balance. You can use the calculator below to determine whether this balance is sufficient for your monitoring project. If not, you can insert your own physical SIM card instead or subscribe to our worry-free eSIM auto top-up service.
The remaining eSIM balance can be checked in ydocTerminal → Tools → YDOC SIM Balance Checker.
Note: This calculation estimates how long the data balance could last based on your expected data usage. The calculated period may exceed the validity period of the 1NCE eSIM balance.