Features: This true-RMS 2000 counts automatic range clamp meter can accurately test AC voltage and current signal of distortion. Temperature and non-contact voltage detection expands use environment. Optimization of jaw adds test pen clip, convenient for single-hand operation. Optimization socket position for better security and beautiful appearance, reduces the foreign dust entering. Added back hooks, convenient to carry. It can also be used for resistance, continuity test and diode measurement. V- alert dangerous voltage alarm. It supports temperature test, data hold, and backlight function. Specifications: Model: ACM81 Display: 2000 counts DC Voltage: 2V/20V/200V/600V/0.001V/ 0.01V /0.1V /1V(1.0%+3digit AC Voltage: 2V/20V/200V/600V/0.001V/ 0.01V /0.1V /1V(1.0%+3digit) Resistance: 200/2k/20k/200k/2M/0.1/0.001k/0.01k/0.1k/0.001M(1.0%+3digit) 20M/0.1M(1.2%+20digit) Buzzer: If tested circuit has resistance less than 30, the buzzer will alarm Temperature: -20~500/-4~932/1/2(2.0%+2digit) Clamp Size: 20mm Operating Temperature: 0 ~ 40 Storage Temperature: -10~50 Relative Humidity: 75% Operating Altitude: 0~2000m Conversion Speed: 3 times/sec. Over-range Indicator: LCD will display "OL" Polarity: Automatic Automatic Power-off: 15 minutes, buzzer sound warning. Power Supply: 2 *AAA batteries 1.5V (NOT included) Weight: 340g / 12.0oz(approx.) Package list: 1 * Clamp Meter(Batteries are not included) 1 * Test Leads 1 * Screwdriver 1 * Packing Bag 1 * User Manual Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.