Upgrade your Sensar® for increased DTV! Lightweight, sleek add-on unit attaches to existing Sensar® head. Increases UHF db gain up to 100% on DTV channels, giving you more range. Compatible with all Winegard Sensar® crank-up antennas. Powder coated for long lasting durability in harsh environmental conditions. 16-1/2” W x 1-2/5” H. Weight, 1 lb.