Total mileage calculation.
If you want to calculate the mileage, acc
ording to the following steps:
1. Send SMS“123456gprsdata 1”to the un
it.
2. Send SMS “123456t010s***n” to
the unit.
3. Send SMS “123456km0”to the unit.
4. Send SMS “123456km？”,it will reply t
he mileage dates.
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