The products are battery powered. They are characterized by stable function and high reliability, with the features of overload protection and LCD display for clear reading, are an perfect tools for lav, factory, radio fans and family use. Features: Allows for various electrical tests including resistance, voltage and current tests with a simple switch. Large screen, high contrast, full display clearly. With a backlight function and flashlight function, suitable for operation under dark environment. Magnetic suction function makes the multimeter stick on metal surface, no worry about falling down. Data hold function, easier to read the measurement . Turn off automatically several minutes of non-use to save energy. Easy to operate, one-handed operation perfect choice for carry-on measuring. Specifications: Main material: plastics Height: under 2000m Working temperature: 0-40(80%RH, not considered 10) Storage temperature: -10-60(80%RH, take off battery) DC volts : 200V/600V Resolution: 100mV/1V AC volts : 200mV/2V/20V/200V/600V Resolution: 0.1mV/1mV/10mV/100mV/1V DC current Reange: 2mA/20mA/200mA/10 Resolution: 1uA/10uA/100uA/10mA Resistance : 200/2K/200K/2M/20M Resolution: 0.1/1/100/1K/10K Battery: 3 * AAA batteries (NOT included) Item Weight: 216g / 7.62ounces Package Weight: 270g / 9.52ounces Item Size: 147 * 71 * 45 mm / 5.79 * 2.80 * 1.77in Package Size: 200 * 145 * 65 mm / 7.87 * 5.71 * 2.56in Package List: 1 * Multimeter 1 * English Manual 1 pair * Electronic Probe