How do I know if I have an Economy 7 meter?

I have two MPANs as I have storage heating. How do I know if I have an economy 7 meter?

@Megm217 You have a weathercall meter which has these off peak hours:

Weekdays 0000-0700, 1300-1600, 2000-2400; Saturdays 1300-2400;

Sundays 0000-2400

It is not an economy 7 meter.