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Lonsdor RT4 IR FR Remote Frequency Tester
Product Description Lonsdor Remote Tester for 902mhz 868mhz 433mhz 315mhz, Lonsdor 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?
- Put the remote control close to the device
- Press any button on the remote control
- The indicator that turns on is the frequency
- Press the key
- The infrared indicator turns on - good, off - bad