The Hi-Tec HFP-10 Digital Servo Programmer & Tester is a must-have for any RC model airplane enthusiast. This top-of-the-line servo tester is compatible with 1:4, 1:5, and 1:6 scales and is suitable for ages 12 and up. Made in Korea, this servo programmer is perfect for testing and programming your RC model airplane's servos. It features a digital display and is easy to use, making it a great choice for both beginners and experienced pilots. Add the Hi-Tec HFP-10 Digital Servo Programmer & Tester to your RC model airplane today and take your flying experience to the next level!