[Full-Featured Design]The T21D Digital Multimeter accurately measures non-contact voltage, voltage, current, resistance, continuity, frequency, capacitance, diodes, temperature, live wire testing, and battery testing. [Versatile Applications]This digital multimeter serves as a practical tool for general electrical testing, including power outlets, batteries, charging systems, circuit testing, and automotive electronics. It is the ideal tool for DIY enthusiasts, home users, repair technicians, and electricians. [Auto-Range Function]The auto-ranging multimeter offers convenient operation without manual adjustment of the range knob. The instrument automatically selects the appropriate range as long as the measured value does not exceed the maximum voltage limit. [Non-Contact Voltage Detection]Prioritizing safety, the T21D features non-contact voltage detection and live wire detection with audible and visual alerts. Test outlets and terminals without touching any wires, significantly enhancing operational safety and reliability. (Batteries are not included in the shipment, you need to bring 3 x AAA batteries yourself; Note: The color of the test leads of the product accessories is random, and specified colors are not accepted) Color: As Shown Material: plastic Package Contents: 1 set * T21D mini digital multimeter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.