VC830L Digital Multimeter - Portable, High-Precision Backlight LCD with Non-Slip Protection Sleeve & 9-Volt Battery. Corslet Multimeter is designed to safely and accurately troubleshoot a variety of automotive and household electrical issues. It's easy and safe to operate and features many different functions for measuring current, voltage, and resistance, as well as continuity, transistor, and diode testing. FEATURES: 1) Automotive and household electrical problems safely and accurately. 2) Corslet Multi Tester can also be used to diagnose, assemble, and repair circuitry and wiring. 3) Data hold and large digital display with backlit LCD for visibility in dimly light areas. 4) Overload protection on all ranges. 5) Built-in kickstand for hands-free use. Protective rubber corner guards for drop protection PRODUCT DETAILS: Batteries: 9 V DC voltage: 200 mV-2-20-200-600 V ±0.5 % AC voltage: 200V-600V ±2.0 % DC current: 200u-2m-20m-200m-10A ±1.8% Resistance: 200-2k-20k-200k-2M? ±1.0% HOW TO USE: DC voltage measurement 1.Set rotary switch at desired DCV position 2.Connect the black test lead to the “COM” jack, the red to "V ?" jack 3.Connect test leads across the source or load being measured. DC current measurement, AC Voltage Measurement, Resistance Measurement, DIODE TEST, TRANSISTOR TEST Please refer to the manual for more measurements PACKING INCLUDE: 1 x multimeter 2 x test leads 1 x English manual 1 x 9 V battery 1 x rubber cover CORSLET SUPPORT: If you have any further questions, please feel free send us a private message. We would be more than happy to assist you 24/7!