??PROFESSIONAL TRACER FUNCTION?The pen digital multimeter can help you quickly find the line pairs in many pairs, this instrument is suitable for RJ45 interface internet cable, RJ11 interface telephone line, for other metal wire hunt through adapter adapter. ??MORE ACCURACY? Measures DC/AC Voltage Tester to 600V, DC/AC Current to 20mA, resistance to 20M?, continuity to 50?, CE ETL CAT ?, you can troubleshoot a variety of automotive an ??HIGH DEGREE OF ACCURACY? The pen digital multimeter provides accurate readings when measuring linear or non-linear loads, regardless of waveform. LCD display, very easy to read. ??AUTO RANGING ALLIGATOR CLIP?Pen multimeter design auto range and manual range, through two alligator clips can be more firmly clamped wire to measure the voltage current, more convenient for home circuits as well as at work ??POCKET SIZE DESIGNED FOR EASY CARRYING? Easy to use with one hand, weighs only 0.22lb, carrying Bag can carry, suitable for home, factories, schools, cars and other electrical tester and maintenance, Have a 2 year warranty service.