Probe, Testing Functions Tone Detection, Adapters Included RJ11, Connector Type RJ11, Data Safe Monitor No, Display Screen Type LED, For Use With Telephone Jacks, Includes 60 Hz Filter, Maximum Cable Length 10 mi, Wire Mapping Detections Opens, Shorts, Alert Type Light, Port Number Display No, Waterproof No, Product Type Probe, Operating Voltage 60V DC, Calibration Certificate Not Included, Data Logger No, Battery Chemistry Alkaline