It is a frequency tester of remote control, which can test the frequency of remote control exactly and show out clearly. It make you easy to adjust the exact frequency that you want when you are confecting the remote control.

Test method:

So long as you approach the remote control to the tester not above 10cm, it can test your remote control exactly.

Application range:

Electric door controller, auto door etc burglar alarm controller. Remote control, electric lock, garage door

Remote control, entrance guard, and so on.

*Battery not include in package