The FNIRDSI DSO-TC4 is a multifunctional transistor oscilloscope that is both comprehensive and practical. It is designed for use in maintenance and R&D applications, integrating an oscilloscope, transistor tester, and signal generator into a single device. Features Equipped with a 2.8-inch TFT color screen for a clear and intuitive display Built-in high-capacity rechargeable lithium battery (1500 mAh) with a standby time of up to 4 hours Compact and lightweight, ideal for mobile use Specifications Oscilloscope Analog Bandwidth 10 MHz Real-Time Sampling Rate 48 MSa/s Input Impedance 1 MΩ Coupling Mode AC/DC Test Voltage Range 1:1 Probe: 80 Vpp (+40 V) 10:1 Probe: 800 Vpp (+400 V) Vertical Sensitivity 10 mV/div~10 V/div (X1 range) Vertical Displacement Adjustable with indication Time Base Range 50ns~20s Trigger Mode Auto/Normal/Single Trigger Type Rising edge, Falling edge Trigger Level Adjustable with indication Waveform Freeze Yes (HOLD function) Automatic Measurement Max, Min, Avg, RMS, Vpp, Frequency, Cycle, Duty Cycle Component Tester Transistor Amplification factor "hfe"; Base-Emitter voltage "Ube", Ic/Ie, Collector-Emitter reverse leakage current "Iceo", Ices, Forward voltage drop of protection diode "Uf" Diode Forward voltage drop <5 V (Forward voltage drop, Junction capacitance, Reverse leakage current) Zener Diode 0.01~32 V Reverse Breakdown Voltage (K-A-A Test Area) Field-Effect Transistor (FET) JFET: Gate capacitance "Cg", Drain current Id under "Vgs", Forward voltage drop of protection diode "Uf" IGBT: Drain current Id under Vgs, Forward voltage drop of protection diode Uf MIOSTET: Threshold voltage "Vt", Gate capacitance "Cg", Drain-Source resistance "Rds", Forward voltage drop of protection diode "Uf" Unidirectional SCR Trigger voltage <5V, Gate level (Gate voltage) Bidirectional SCR Trigger current <6mA (Gate voltage) Capacitor 25pF~100mF, Capacitance value, Loss factor "Vloss" Resistor 0.01Ω~50MΩ Inductor 10μH~1000μH, DC resistance DS18B20 Temperature sensor, Pins: GND, DQ, VDD DHT11 Temperature and humidity sensor, Pins: VDD, DATA, GND Signal Generator Output Waveform Supports 13 waveform outputs Waveform Frequency 0-50 KHz Square Wave Duty Cycle 0-100% Waveform Amplitude 0.1-3.0 V General Display 2.8-inch TFT color screen Backlight Brightness adjustable Power Supply USB-C (5 V/1 A） Battery 3.7 V/1500 mAh Languages English, German, Spanish, Portuguese, Russian, Chinese, Japanese, Korean Dimensions 90 x 142 x 27.5 mm Weight 186 g Included 1x FNIRSI DSO-TC4 (3-in-1) Oscilloscope (10 MHz) 1x P6100 Oscilloscope probes (10X) 1x Alligator clip probe 3x Test hooks 1x Adapter 1x USB-C charging cable 1x Manual Downloads Manual Firmware V0.0.3 (+V1.0.9)

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The QA403 is QuantAsylum's fourth-generation audio analyzer. The QA403 extends the functionality of the QA402 with improved noise and distortion performance, in addition to a flatter response at band edges. The compact size of the QA403 means you can take it just about anywhere. Features 24-bit ADC/DAC Up to 192 kS/s Fully isolated from PC Differential Input/Output USB powered Built-in Attenuator Fast Bootup and Driverless The QA403 is a driverless USB device, meaning it’s ready as soon as you plug it in. The software is free and it is quick and easy to move the hardware from one machine to the next. So, if you need to head to the factory to troubleshoot a problem or take the QA403 home for a work-from-home day, you can do it without hassle. No-Cal Design The QA403 comes with a factory calibration in its flash memory, ensuring consistent unit-to-unit performance. On your manufacturing line you can install another QA403 and be confident what you read on one unit will be very similar to the next unit. It is not expected that re-calibration will be required at regular intervals. Measurements Making basic measurements is quick and easy. In a few clicks you will understand the frequency response, THD(+N), gain, SNR and more of your device-under test. Dynamic Range The QA403 offers 8 gain ranges on the input (0 to +42 dBV in 6 steps), and 4 gain ranges on the output (-12 to +18 dBV in 10 dB steps). This ensures consistent performance over very wide ranges of input and output levels. The maximum AC input to the QA403 is +32 dBV = 40 Vrms. The maximum DC is ±40 V, and the maximum ACPEAK + DC = ±56 V. Easy Programmability The QA403 supports a REST interface, making it easy to automate measurements in just about any language you might anticipate. From Python to C++ to Visual Basic—if you know how to load a web page in your favorite language, you can control the QA403 remotely. Measurements are fast and responsive, usually with dozens of commands being processed per second. Isolated and USB Powered The QA403 is isolated from the PC, meaning you are measuring your DUT and not chasing some phantom ground loop. The QA403 is USB powered, like nearly all our instruments. If you are setting up remotely, throw a powered hub in your bag and your entire test setup can be running with a minimum of cables. Goodbye Soundcard, Hello QA403 Tired of trying to make a soundcard work? The calibration nightmare? The lack of gain stages? The limited drive? Are you tired of dealing with the fixed input ranges? The worry that you might destroy it with too much DC or AC? Tired of the ground loops? That’s why QuantAsylum built the QA403. Specifications Dimensions 177 x 44 x 97 mm (W x H x D) Weight 435 g Case Material Powder-coating Aluminum (2 mm thick front panel, 1.6 mm thick top/bottom) Downloads Datasheet Manual GitHub

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The Elektor Milliohmmeter Adapter uses the precision of a multimeter to measure very low resistance values. It is an adapter that converts a resistance into a voltage that can be measured with a standard multimeter. The Elektor Milliohmmeter Adapter can measure resistances below 1 mΩ using a 4-wire (Kelvin) method. It is useful for locating short circuits on printed circuit boards (PCB). The adapter features three measurement ranges – 1 mΩ, 10 mΩ, and 100 mΩ – selectable via a slide switch. It also includes onboard calibration resistors. The Elektor Milliohmmeter Adapter is powered by three 1.5 V AA batteries (not included). Specifications Measurement ranges 1 mΩ, 10 mΩ, 100 mΩ, 0.1% Power supply 3x 1.5 V AA batteries (not included) Dimensions 103 x 66 x 18 mm (compatible with Hammond 1593N-type enclosure, not included) Special feature On-board calibration resistors Downloads Documentation

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The FNIRSI CTG-20 is a coating thickness gauge designed for measuring the thickness of electroplated coatings or coatings on metal surfaces. It can accurately measure non-magnetic coatings (such as paint) on magnetic materials like steel or iron, as well as coatings on non-magnetic materials such as aluminum. Equipped with a built-in precision probe and a rechargeable lithium battery, the device automatically detects substrate properties and determines coating thickness using electromagnetic induction and eddy current effects. This robust instrument delivers fast and highly accurate measurements, making it ideal for applications in manufacturing, the chemical industry, the automotive sector, and other testing fields. Specifications Measuring Range 0-1400 μm Accuracy ±3% +2 μm Resolution Ratio 0.1 μm Calibration Zero point calibration, Multi-point calibration Unit μm, mil Minimum Convex Curvature Radius 5 mm Minimum Convex Curvature Radius 25 mm Minimum measurement area diameter 20 mm Battery 600 mAh Lithium battery Charging Interface USB-C Features Data Storage, Rotatable Screen, Putty Powder Test, Auto Power Off Dimensions 115 x 48 x 18 mm Weight 83 g Included 1x FNIRSI CTG-20 Coating Thickness Gauge 1x USB cable 1x Manual Downloads Manual

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The PeakTech 1094 two-pole voltage tester is a reliable and practical tool for measuring voltages up to 400 V. It uses LED indicators to display voltage levels at 12 V, 24 V, 50 V, 120 V, 240 V, and 400 V. The device supports both AC and DC voltage measurements and automatically detects and displays polarity when measuring DC voltages – no manual switching between AC and DC is required. This tester operates without batteries, ensuring it is always ready for use, even after extended periods of inactivity. With its IP54 protection rating, the PeakTech 1094 is robust and resistant to dust and splashing water, making it suitable for use in both indoor and outdoor environments. Specifications DC Voltage (max.) 400 V AC Voltage (max.) 400 V Over voltage category CAT III 400 V Accuracy -30% to 0% of the measured value Voltage test Automatically Polarity check Entire measuring range Range selection Automatically Response time <0.1s AC Voltage frequency range 50/60 Hz Dimensions 223 x 40 x 32 mm Weight 95 g Downloads Manual

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The ZK-DP3D CNC USB-C DC-DC Converter is a versatile, high-precision voltage and current regulator designed for a wide range of applications. Featuring a digital control interface with adjustable voltage (1-30 V) and current (0-2 A), it offers a precision LCD display for monitoring input/output voltage, current, power, and more. Equipped with intelligent fast-charge protocol support (QC2.0/3.0, FCP, SCP, AFC) and multiple safety protections, it is ideal for powering devices such as USB fans, routers, and batteries. Its compact design includes push-type terminals for easy connectivity and a high power output of up to 15 W, ensuring reliability and convenience for both hobbyists and professionals. Specifications Input voltage 4-13 V (3 input interfaces: USB, MicroUSB and USB-C) Output voltage 1-30 V Output current 0-2 A Output power Less than 15 W Voltage display Resolution 0.01 V, Accuracy ±(0.5% + 3 digits) Current display Resolution 0.001 A, Range 0-2 A, Accuracy ±(0.5% + 3 digits) Power display 0.00-15.00 W Operating current approx. 30 mA Dimensions 92 x 40 x 16 mm Weight 41 g

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