NF-866 Phone Line Cable Tester with Display Screen Tele Fiber Optical Tool Check DTMF Caller ID Auto Detection Search Machine Cable Tester

Features: NF-866 telecommunications check phone pocket integrated circuits, can be used on wall-mounted telephone. This product meets the standards of the People's Republic of China. Allow access to the telephone network. FSK technology and DTMF caller ID, automatic detection. 16 number displays. Dynamic call to save 38 groups. The HOLD function and off-hook host automatically hang up. Track automatically dial, dial ring back. Flash time 1000ms/600ms/300ms/110ms optional. New call indicator. Descriptions: Ambient Temperature: -10 to +40 C Relative Humidity: 10% ~ 95% Atmospheric Pressure: 86 to 106kPa Environment Noise: 60dB (A) Ringing Level: 70dB (A) Transmission index (subscriber line length of 5km): sending loudness rating: 12dB Receive Loudness Rating Value: 1dB Side Tone Hidden Assessed Value: 10dB Material: plastic Color: red Item Size: 160*65*20mm Package included: 1 x Phone Line Cable Tester Details Pictures: