GM328 ESR Voltage Frequency Meter PWM Square Wave Multifunctional Transistor Tester DIY Kit

Features：

• Digital LCD display for easy readings, can display measured data and graphics.

• Main chip is the DIP, easy for electronic enthusiasts to DIY or update the main chip.

• Use 9V battery(not included), can also use DC power(DC 6.8-12V).

• Automatic shutdown, shutdown current is only about 20nA.

• Automatically detects NPN and PNP transistors, FET, diodes, dual diode, thyristor, SCR, automatic identification of the transistor pinout.

• Test NPN and PNP transistor common-emitter current amplification factor, the base-emitter threshold voltage, off the collector - emitter leakage current.

• Support 2 resistors measurement, show its positive and negative, on-state voltage.

• Resistance measurement maximum resolution 0.01Ω, can be measured up to 50MΩ.

• Automatically test the pins of a component and show on the display.

• Measure FET gate threshold voltage and gate capacitance.

• For the following 2100Ω resistor while measuring its inductance measuring range from 0.01mH - 20H.

• Can be used as signal generator and frequency meter: frequency range from 1Hz-2MHz and can generate 1%-99% PWM(pulse width modulation) signals.

Parameters:

• Type: DIY Kit

• Display: 160*128 LCD

• Power Supply: 1 * 9V Battery(not included); DC 6.8-12V  

• Current: Approx. 30mA

• Power Supply: 1 * 9V Battery(NOT Included)

• Resistance Measurement: Max. 50MΩ

• Resistance Resolution: 0.01Ω

• Capacitance Measurement: 25pF~100mF

• Capacitance Resolution: 1pF

• DC Voltage Measurement: Up to 50V

• Screen Size: 3.7 * 3cm / 1.45 * 1.18in

• PCB Size: 7.8 * 6.2cm / 3.1 * 2.44in

Notice: Before measuring capacitance, the capacitor must be discharged, otherwise very likely damage the meter.