GM328 PWM Square Wave Signal Generator Transistor Multifunctional Tester with Case

SKU: 1941187

12.34 12.34 Piece 12.34 USD

¥ 90.00

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

  • Rotary switch control, a key measurement for convenient use.

  • 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.


  • 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.

Package List: 

  • 1pcs  tester

  • 1 pcs  Acrylic shell