nmbhus NF-300 - RJ45 RJ11 BNC USB open short crossover crosstalk

Cable search function Cable Finder Type (Network Cable/Telephone Cable/Coaxial Cable/Wire and Cable) Yes Support switch with power search. Yes Distance Not less than 3000 meters Change with Loaded Line Search Distance Not less than 100 meters Shielded and unshielded cables can be searched Yes Open circuit or short circuit test Yes Positive and negative polarity indication of the telephone line (i.e. DC level test function) Yes Breakpoint search function (cable completely disconnected) Yes Transmitter output signal voltage >12V (Peak to Peak) Transmitter Audio Mode Fast slow Transmitter and receiver low battery indicator function Approx. 6.6V Transmitter and receiver power battery 9V Laminated Battery Maximum Transmitter Operating Current (RMS) 25mA Headphone jack (receiver) Yes Maximum operating current standby of receiver (no line found while holding the "Find line" button) 10mA Maximum line search current of the receiver (press and hold the "Find line" button, find the line and turn off the volume knob. When line is detected and the volume knob is adjusted to the maximum) 40mA (effective value) Line pairing function Line Sequence Test 9 LED indication (LED1-LED8, LED_G) Selectable fast and slow wire sequence test speed Yes Network Cable (Shielded/Unshielded Indication) Yes Operating environment Operating Temperature -10~50℃ Storage temperature -10~50℃ Operating Humidity 20-75% RH Storage Humidity 10-90% RH Altitude ≤2000m