High quality garage/car key wireless remote control frequency tester, supports 200-900MHz frequency range (ASK), detects fixed code and rolling code, Note:1. Remove other electronic devices that may interfere with the frequency, like cellphone, computer, light, led,etc. 2. Place the car key remote control on the sensing area below the display screen and press the button to test!! The TY-FD100 Remote Control Tester has been developed to assist with the diagnosis of many types of (RF) Radio Frequency remote controls clone working. It could let you easy to confirm if the frequency and the data of keys or remote controls are the same as the old one. Type:Remote Control Detector, Power Input: 5V (Type-C), Data Compare:YES, Frequency Range:200Mhz to 900Mhz,ASK, Colour:As Shown Material:PC Package Contents: 1 x Universal Remote Control Tester 1 x Type-C Cable(The words on the product may vary due to different product batches, but it will not affect the use) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.