3-3/4 digits 4000 countAC True RMS Easy to read large LCD with Backlight Large breaking capacity fuse 30kA K-type thermocouple temperature measure ment -20℃〜300℃ Thermo plastic elastomer, high resistance against drop shock Safety cap on current terminal Data hold, Range hold, Relative function Continuity check, Diode test Auto power off function (30min.) Maximum 20A can be measured if the measurement time is less than 10 seconds. (Take 10 minutes or longer intervals between measurements) Display : numeral display 4000 Sampling rate : 3 times / sec. AC frequency bandwidth : 45〜500Hz (4V range), 45〜1KHz (40V range and above)