Multi-functional transistor tester for automatic detection of NPN and PNP transistors, N channel, P channel, MOSFET and JFET, diodes, dual diode, thyristor, automatic identification of the transistor pinout. It also can be used for frequency measurement and PWM signal generator.

Note : HW-849A on board working remains same.

Note: The capacitor must be discharged before measuring capacitance.Otherwise, there is a high possibility that the meter will be damaged.

Features:

1. Test NPN and PNP triode common emitter current amplification factor, base-emitter threshold voltage, and collector-emitter leakage current at turn-off.
2. Identification of Darlington transistors through triode base-emitter threshold voltage and high current amplification factor.
3. Detect power diodes and FET built-in protection diodes.
4. Test FET gate-source turn-on threshold voltage, drain-source on-resistance, and gate-source capacitance.
5. It can measure up to 2 resistors at a time, so the adjustable resistors of the three feet can also be measured. If the adjustable resistor is adjusted to the endpoint, only one resistance value can be measured.
6. For capacitors larger than 90nF, the equivalent series resistance (ESR) is measured at the same time. The resolution of the equivalent series resistance is up to 0.01.
7. Resistance measurement: Max. 50M
8. Resistance resolution: 0.01
9. Capacitance measurement: 25pF~100mF
10. Capacitance resolution: 1pF
11. Inductance measurement: 0.01mH~20H

Package Includes:

1 x Soldered GM328A Transistor Tester DIY Kit Black English Version Assembled