Feature: 1. HIGH PERFORMANCE: High accuracy 5 1/2 digit multimeter with 1μV high resolution and 30kS/s high speed sampling frequency for easy catch of transient signals. 2. MULTIPLE FUNCTION: Standard bar graph, histogram, trend graph and data statistics functions, 2 sets of input interfaces before and after, easy to connect. 3. LCD DUAL DISPLAY: This benchtop digital multimeter has dual display measurement function, simultaneous display of voltage and frequency, with clear readings. 4. MEASURABLE DATA: Can measure DC and AC voltage, DC and AC current, 2 wire and 4 wire resistance, capacitance, diode, connectivity, frequency, period and temperature. 5. OTHER PARTS: Equipped with power cord, test leads and USB data cable, the digital multimeter has a compact structure, convenient and stable connection. Specification: Item Type: Digital Multimeter Material: Aluminum alloy, ABS Model: HDM3055 Resolution Bits: 5 1/2 DCV Basic Accuracy: 150ppm Maximum Read Rate: 30000 readings per second Memory: 10000 readings Dual Display Measurement Function: Support Statistical Graphs: Histogram, bar graph, trend graph Interface: USB: Support 232/485: Support LAN: Support GPIB: Not support Front Panel Input Terminal: Support Rear Panel Input Terminal: Support Input Voltage: 100V-240V DC Accuracy Specifications: ±(% reading and % range) Range1 Frequency Test Current or Load Voltage Input Impedance 1 Year Temperature Coefficient ℃ 23±5℃ 0-18℃ DC Voltage 28-55℃ 100mV 10MΩ or ＞10GΩ 0.018+0.008 0.0020 + 0.0008 1V 10MΩ or ＞10GΩ 0.015+0.005 0.0015 + 0.0008 10V 10MΩ 0.015+0.005 0.0020 + 0.0008 100V 10MΩ 0.015+0.005 0.0020 + 0.0008 1000V 10MΩ 0.015+0.005 0.0020 + 0.0008 Resistor 2 100Ω 1mA 0.050+0.008 0.0060 + 0.0008 1kΩ 1mA 0.050+0.008 0.0060 + 0.0005 10kΩ 100μA 0.050+0.005 0.0060 + 0.0005 100kΩ 10μA 0.050+0.005 0.0060 + 0.0005 1MΩ 5μA 0.060+0.005 0.0060 + 0.0005 10MΩ 500nA 0.250+0.005 0.0250 + 0.0005 100MΩ 500nA 10MΩ 2.000+0.005 0.3000 + 0.0005 DC Current 100 μA