5Secondary (auxiliary) deviceEasy to be squeezed / crashed.Store in clean & dry place protected from rain, snow, ice, salt and water.Test of immunity to electromagnetism / RF of 30 V/M passed.Safety SignThe following signs will help you identify a n d understand EAGLE HD’s importantcautious operation, imperative operation and prohibitive operation. These signs are extremelyimportant, please go through them carefully.Please read and observe the guidance provided in this manual.A safety warning sign, or an indication of a dangerous operation that mayendanger your safety or others’ safety.The main application partIn the course of operation do not use mobile, walkie talkie, notebook or otherradio transmitters.