FNIRSI LCR-P1 Transistor Tester Diode Triode Capacitance Resistance Meter LCR ESR Meter NPN PNP MOSFET IR Multifunction Tester

FNIRSI DSO-152 Pocket Oscilloscope for Car Audio Gain, Clipping Check & DIY Learning

FNIRSI-FNB58 USB Tester Voltmeter Ammeter TYPE-C Fast Charge Detection Trigger Capacity Measurement Ripple Measurement

FNIRSI LCR-ST1 Mini Smart Digital Tweezer Tester for Resistance Capacitance Inductance Diode Measurement with 3 Test Frequencies & 2 Test Voltages Portable Multifunctional Instrument

FNIRSI GC-01 Geiger Counter Nuclear Radiation Detector Personal Dosimeter X-ray γ-ray β-ray Radioactivity Tester Marble Detector

FNIRSI DSO152 Mini Oscilloscope Full Trigger Function Auto Normal Single Supports Periodic Analog Signals and Aperiodic Digital Signals 2.8 Inch LCD Display fathersdaygift