The speedometer is functional, universal for electric scooters, electric cars, quads, buggies, etc.
Works with voltages up to 135V, and correctly shows the charge level in divisions in all ranges. The operating voltage range is selected manually.
The following ranges are available to choose from, depending on the voltage of your battery:
48V (0-100%) from 38 to 54V
60V (0-100%) from 48 to 67V
64V (0-100%) from 52 to 71V
72V (0-100%) from 60 to 84V
80V (0-100%) from 66 to 92V
84V (0-100%) from 72 to 100V
96V (0-100%) from 84 to 117V
108V (0-100%) from 90 to 126V
120V (0-100%) from 96 to 134V
The animation shows how the voltage switching occurs to cshow charge level correct:

The odometer cannot be hacked!
The speedometer shows: battery voltage, charge indication in divisions, turning on turns, brake light, light, discharged battery.
Also, when using Fardriver brand controllers, it shows the following functions:
Active speed mode (from 1 to 3)
Parking mode
Regenerative braking
Electric motor error (malfunction of Hall sensors, open or short circuit of phase wires)
Accelerator handle error (malfunction of Hall sensor)