I don't know that meter, but it looks to me like it has two LEDs.
No. 1 will flash on one tariff, No.2 will flash on the other tariff. So you can tell when it switches from one tariff to another.
The three readings on the meter might be tariff 1 usage, tariff 2 usage, combined usage. Try noting them on a bit of paper for a few days and seeing how much they change by.
No. 1 will flash on one tariff, No.2 will flash on the other tariff. So you can tell when it switches from one tariff to another.
The three readings on the meter might be tariff 1 usage, tariff 2 usage, combined usage. Try noting them on a bit of paper for a few days and seeing how much they change by.