MULTIPLE PROTECTIONS: Equipped with double ceramic fuses and a circuit protection thermistor to protect the multimeter from burning. High voltage protection is active in all ranges. Double insulation: Insulating body and silicone protective sleeve protect the instrument from damage caused by drops or electric shocks. Wide application: : Test basic electrical problems of cars or household appliances, suitable for electrical circuits, home users, enthusiasts, electricians and professional technicians. They can be used for household sockets, distribution boxes, fuses, cables, universal batteries, automotive batteries and charging systems, automotive circuits, etc. Easy to use: Choose the function you want to test (make sure the rotary switch is set to the correct test range) and connect the test leads. Data hold function for quick reading, backlight for testing clearly in a dark place. Multifunction: Can measure AC/DC voltage, DC current, resistance, diode, HFE, continuity and square wave output. Portable Design: It is small and can be put in a pocket, easy to carry. Specification: LCD: 3 1/2digits Maximum reading: 1999 DC Voltage: 200mV/2000mV/20V/200V/1000V AC Voltage: 200V/750V DC Current: 200uA/2000uA/20mA/200mA/10A Resistance 200/2k/20k/200k/2000k Transistor: NPN, PNP Battery: 9V(not included) Size: (L)12.4cm x (W)6.9cm x (H)2.4cm Package include: 1 x DT-830B multimeter(battery not included) 1 x Test lead