The DMT-99 Digital Multimeter delivers enhanced measurement accuracy and versatile testing capabilities for professional use. - Enhanced measurement accuracy: 9999 counts and true RMS functionality provide precise readings across a wide range and higher resolution, helping professionals in electronic maintenance, engineering, laboratories, automotive work, and home appliances. - Versatile functionality: accurately measures AC/DC voltage and current, 10 A current, conductivity, capacitance, frequency, duty cycle, resistance, diode test, temperature, NCV (Non-Contact Voltage detection), and live wires. - Clear display and user interface: 2.4-inch full-color TFT display with a resolution of 240x320 for a clear, vibrant readout. supports a DIY boot interface for customized startup options; new UI and monitoring mode improve usability in different scenarios. - Durable construction: built with high-quality materials to withstand professional use, providing long-lasting durability in demanding environments. - Practical use scenarios: electronics maintenance and engineering labs; automotive and home appliance diagnostics; field service and on-site testing.