Hitecs hfp-30 field programmer is the latest in digital servo testing and programming Packed with advanced features and a large, easy-to-read LcD screen, It efficiently programs all hit Ec digital servos, including the hs-5xxx, hs-7xxx, brushless hsb-9xxx, and the latest D-Series Operating on a wide voltage Range of 4884, the Hit Ec hfp-30 is your hobbys best, must-have accessory