Description: This is a frequency counter of remote control, which can test the frequency of remote control and show out on the screen. So it would be easy for you to get the right frequency when you change your remote. For Testing RF Remote Control: Put your remote in the text zone, the frequency will be shown on the screen. For Testing IR Remote Control: Put your remote near the counter, press random button until the IR light is on. Please stay away from signal tower, utility pole, making phone calls, texting and other interference sources when you perform the testing. Specification: Testing Range: 250MHz-450MHz Power Source: 3 x AAA Battery (NOT INCLUDED) !!!!!!!!!!!!!!!!!!!!!!!! Size: Approx. 12.5*7*2.5cm/5*2.8*1 Inch Material: Plastic Package Includes: 1 Piece Frequency Counter NO BATTERY!
