A wide variety of tests. An instrument can test AC and DC voltage, alternating current, resistance, diode, temperature, circuit breakage and so on. The operation is simple and the logo is clear. You can choose the content to be tested by changing the rotary knob. The gears have a strong sense of pause, and the operation is comfortable. Ultra clear LCD display, clear handwriting, easy reading, maximum display 1999. The caliper opening size is 28mm, which can be used for wire maintenance and circuit detection. This package has two black and two pens, which are of fine workmanship. The insertion port is smooth and used for measuring various functions. The black red temperature probe is used to measure the temperature. Both the Fahrenheit temperature and the Celsius temperature can be measured.