Proskit Telephone Line Tester MT-8004Features: FSK and DTMF caller ID display, automatic detection. Backlight: Adjustable brightness. Redial, callback, Flashing function. Overvoltage protection. 16 groups of outgoing call storage. 62 groups of dynamic call storage. 32 bit pre dialing and error correction function. Tone or Pulse dial mode select, suitable for different type telephone systems.
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