Features 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. 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. 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. 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. 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. 1. Multifunctional: This mini smart digital multimeter is multifunctional, including Item Type: Pen Type Digital Multimeter Material: ABS, PVC Display: LCD Screen Maximum Display: 6000 Counts Charging Voltage: DC 5V Power 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 Diode: Automatic Identification for Diodes Less Than 3V Sampling Rate: Approx. 3 Times/Second Auto Power Off: 15 Minutes Measurement Range: AC Voltage: 0.06-620V DC Voltage: 0.06-620V VFC Frequency Voltage: 10-620V Leakage Voltage: 12-300V Resistance: 1Ω-60.00MΩ Capacitance: 1.00nF-60.00mF Frequency: 1.000Hz-9.999MHz Duty Cycle: 10.0%-95.0% How to Use: Follow the instructions manual after taking out the pen type digital multimeter. Package List: 1 x Multimeter 2 x Voltage Testers 1 x Charging Cable 1 x Manual 1 x Storage Bag Note: 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. Package List 1 x Multimeter 2 x Voltage Testers 1 x Charging Cable 1 x Manual 1 x Storage Bag