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. 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 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 <0.02 V 0.050+0.015 0.007 + 0.0015 1 mA <0.2 V 0.050+0.007 0.007 + 0.0010 10 mA <0.02 V 0.050+0.015 0.008 + 0.0015 100 mA <0.2 V 0.050+0.007 0.008 + 0.0010 1 A <0.1 V 0.100+0.015 0.012 + 0.0015 3 A <0.3 V 0.250+0.007 0.015 + 0.0010 10 A <0.02 V 0.250+0.007 0.015 + 0.0010 Turn On 3 1kΩ 1mA 0.100+0.100 0.005 + 0.005 Diode Test 4 1V 1mA 0.05+0.03 0.005 + 0.005 AC Accuracy Specification: ±(% reading and  % range) True RMS AC Voltage 5 6 Test Current or Load Voltage Input Impedance 1 Year Temperature Coefficient ℃ 23℃±5℃ 0 ℃-18 ℃ 28 ℃-55 ℃ 100mV Range 20Hz-45Hz 1.00+0.10 0.02 + 0.02 45Hz-10kHz 0.20+0.10 0.02 + 0.02 10kHz-30kHz 1.50+0.30 0.05 + 0.02 30kHz-100kHz7 3.00+0.30 0.10 + 0.02 Range: 1V, 10V, 100V and 750V 20Hz-45Hz 1.00+0.108 0.02+0.02 45kHz-10kHz 0.20+0.10 0.02+0.02 10kHz-30kHz 1.50+0.30 0.05+0.02 30kHz-100kHz3 3.00+0.309 0.10+0.02 True RMS AC Current 2 Range: 100uA-10A 20Hz-45Hz 1.50+0.10 0.02+0.02 45Hz-1kHz 0.50+0.10 0.02+0.02 1kHz-10kHz10 2.00+0.20 0.02+0.02 Frequency: Specification ± (% reading + 3 counts) Frequency Range 11: 100mV, 1V, 10V, 100V and 750V 20Hz–300kHz12 0.02+3 0.005 Frequency Resolution Frequency Resolution Range 13: 100mV, 1V, 10V, 100V and 750V 119.999Hz 0.001Hz 1.19999kHz 0.00001kHz 11.9999kHz 0.0001kHz 119.999kHz 0.001kHz 1.00000MHz 0.00001MHz Capacitance 1 Test Current or Probe Type Input Impedance 1 Year Temperature Coefficient ℃ 23℃±5℃ 0℃-18℃ 28℃-55℃ 1.000nF 5μA 1 + 0.5 0.02 + 0.001 10.00nF 5μA 1 + 0.5 0.02 + 0.001 100.0nF 10μA 1 + 0.5 0.02 + 0.001 1.000μF 100μA 1 + 0.5 0.02 + 0.001 10.000μF 1mA 1 + 0.5 0.02 + 0.001 100.00μF 1mA 1 + 0.5 0.02 + 0.001 Temperature 14 –80.0℃ to 150℃ 5 kΩ Thermistor Prob Thermistor Accuracy +0.2 ℃ 0.002℃ –110.0℉ to 300.0℉ 5 kΩ Thermistor Prob Thermistor Accuracy +0.2℉ 0.0036℉ 1 x Desktop Multimeter 1 x Power Cord 2 x Table Pen 1 x USB Data Cable 1 x User Manual