... financial system/dongle/tax control system/remote meter reading system/test instrument/ultrasonic:50.000MHz,3.579545MHz,48.000MHz,4.000MHz, ... 28.636 36.000 27M 14.318 3. For medical instrument: instrument, micrometer, caliper, depth measurement etc. 4. For auto ... control system/remote control/GPS/parking distance control/tire pressure test/car audio, access control system, video telephone/video ...