Terrestrial TV Meters are used by Aerial Contractors to correct align Digital TV Aerials, with the advent of Digital Terrestrial TV there has never been more need for a correctly aligned TV Aerial which should give you 10-15 years of trouble free viewing. A poorly aligned TV Aerial will contribute to picture breakup and total signal loss in poor weather conditions. We stock 3 Horizon Terrestrial TV Meters, the Horizon HDTM, the Horizon HDT2 and the Horizon HD-STM are listed below. We also have a Budget combo Satellite and Terrestrial meter which retails at under £35 and again is offered with Free UK and Ireland Delivery.