Lonsdor RT4 IR FR Remote Frequency Tester for 868mhz 433mhz 902mhz 315mhz

Lonsdor RT4 Remote Tester Radio Frequency (FR) Infrared (IR) can detect frequency as well as infrared working or not, which helps a lot in key programming and car maintenance.

How to test the frequency?

1- Put the remote control close to the device
2- Press any button on the remote control
3- The indicator that turns on is the frquency

How to test infrared working or not?

Press the key
The infrared indicator turns on - good, off - bad

Lonsdor RT4 IR/FR Frequency Test Range:

• 300MHz-320MHz
• 434MHz
• 868MHz
• 902mhz