Remote Frequency Tester - 315mhz - 433mhz - 868mhz - 902mhz - Infrared TesterProduct SKU: KLF TESTERKLF TESTERLonsdor Remote Tester can detect frequency as well as if infrared is working or not, which helps a lot in key programming and car maintenance. Frequency Test Range: 1. 300MHz 320MHz2. 434MHz3. 868MHz4. 902mhzHow to test the frequency? Put the remote control close to the devicePress any button on the remote controlThe indicator that turns on is the frequencyHow to test infrared working or not? Press the keyThe infrared
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