Feature:1. Multifunctional: This mini smart digital multimeter is multifunctional, including an AC or DC voltage tester, resistance, continuity, capacitance and diode testing, and firewire detection, making it a must have tool for electricians, technicians and personnel.2. Energy And Power Saving: This pen type digital multimeter has an auto shut off function, if there is no operation in 15 minutes, it will be automatically shut down, very energy and power saving.3. LCD Display: The voltage current resistance tester pen features a large backlit LCD display that ensures clear, easy to read measurements even in low light conditions, making it ideal for night work.4. Compact And Portable: This rechargeable pen type voltmeter is small in size and light in weight, and features a user friendly pen clip, making it very convenient to carry around with you and use.5. Wide Application: This voltmeter sensor pen has a wide range of applications, not only as a multimeter, but also as a voltage test pen and leakage test pen, which can be used in homes, schools, factories, construction sites and so on, for a variety of electrical applications.Specification:Item Type: Pen Type Digital MultimeterMaterial: ABS, PVCDisplay: LCD ScreenMaximum Display: 6000 CountsCharging Voltage: DC 5VPower Supply Battery: 1 Lithium Ion Battery 400mAh (Included)Working Altitude: 2000M (Maximum)Auto Mode: Can automatically identify AC voltage, DC voltage, resistance and continuity.Buzzer Continuity: Buzzer sounds and red flashlight lights up when measured resistance andlt 50Diode: Automatic Identification for Diodes Less Than 3VSampling Rate: Approx. 3 Times or SecondAuto Power Off: 15 MinutesMeasurement Range:AC Voltage: 0.06-620VDC Voltage: 0.06-620VVFC Frequency Voltage: 10-620VLeakage Voltage: 12-300VResistance: 1-60.00MCapacitance: 1.00nF-60.00mFFrequency: 1.000Hz-9.999MHzDuty Cycle: 10.0 percent -95.0 percent .Package List:1 x Multimeter2 x Voltage Testers1 x Charging Cable1 x Manual1 x Storage BagNote:1. Before use, please read the instructions carefully, familiarize yourself with the usage and parameters, as well as the precautions. 2. Specific measurement parameters and errors can be found in the instruction manual.