ITEM NAME:Digital Multimeter M300 Ultra-thin Mini Pocket Integrated Multimeter #JT1 Product Description Description: Portable Digital Multimeter M300 Ultra-thin Mini Pocket Integrated Multimeter AC DC Ammeter Voltmeter Ohmmeter Specifications: Name: Multimeter M300 Product technical features: DC voltage: 2-20-200-500V  ±0.5% AC voltage: 200-500V  ±1.0% DC current: 200mA  ±2.0% Resistance: 2k-20k-200k-2000kÃŽ ©  ±1.0% Product General Features: LCD display size: 35x14mm LCD maximum display value: 1999 Low voltage symbol display: yes Overload protection: Yes Diode Test: Yes, show approximate voltage drop On-off detection and buzzer function: Yes Power supply: 12V 23A battery (not included) Product Size: 120x70x22mm/4.72x2.75x0.87in Product advantages: Mini slim, integrated design, small and beautiful Included: 1 x Multimeter M300 1 x User Manual.Product Size: 120x70x22mm/4.72x2.75x0.87in. On-off detection and buzzer function: Yes. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item.