・Overload protection throughout the range ・Maximum the voltage between measurement terminal and ground is 600V DC or 600V AC ・Select measurement function and range automatically ・Low-impedance voltage measurement: The gear is adjusted to the Loz gear, and the function key is used to switch between AC or DC voltage ・LCD backlight bright screen: High precision digital display, clearly see the screen value, without fear of direct sunlight and dark environment ・Flashlight lighting: No fear of dark environment, easy and accurate measurement of current with jaws Specifications: ・Item Name: Clamp Meter ・Brand: ANENG ・Model Number: ST191 ・Size: 220 x 100 x 50mm ・DIY Supplies: ELECTRICAL ・Origin: CN(Origin) ・Measuring Capacitance Range: 6nF/600nF/6uF/60uF/600uF/6mF/60mF +-(2.5%+20) ・Power: AAA 1.5V battery(not included) ・Overrange Display: The highest position shows"OL" ・Low Voltage Display: "Low voltage symbol " symbol appears ・Measuring Voltage Range: 6V/60V/600V +-(0.8%+5) ・Operating Temperature: (-50-1300) temperature ・Measuring Resistance Range: 600/6k/60k/600k/6M/60M +-(0.8%+3) ・Measuring Inductance Range: 60Hz/1000Hz +-(0.1%+5) ・Weight: About 270g ・Measuring Current Range: 0A/600A +-(2.5%+8) ・Display Type: Digital Only ・AC Current: Yes ・AC/DC Voltage: Yes ・NCV Detection: Yes ・Frequency: Yes ・Square Wave Output: Yes ・On-off Test: Yes ・Temperature: Yes ・Diode: Yes ・True RMS Measurement: Yes ・Flashlight: Yes Note: ・ST191 does not contain DC current measurement function. ・There might be 1-3 cm error of size for manual measurement. ・The colors deviation might differ due to different monitor settings, thanks for your understanding. Package included: ・1 x Clamp Digital Multimeter ・2 x Test Probes ・1 x Thermocouple ・1 x Canvas Storage Bag ・1 x English User Manual