{"product_id":"fnirsi-dso-tc3-siggen-3-in-1-transistor-tester-handheld-digital-oscilloscope","title":"FNIRSI DSO-TC3 SigGen 3-in-1 Transistor Tester Handheld Digital Oscilloscope","description":"\u003ch3\u003eFNIRSI DSO-TC3 3-in-1 SigGen Handheld Digital Oscilloscope and Transistor Tester\u003c\/h3\u003e\n\u003cp\u003eThe FNIRSI DSO-TC3 is a handheld digital oscilloscope, transistor tester, and signal generator all in one device, designed for quick diagnostics, maintenance, and field work. It features an oscilloscope with a sampling rate of 10 MS\/s and a bandwidth of 500 kHz, a smart electronic component tester, and a signal generator with 6 waveform types. All of this is housed in a compact, rugged enclosure measuring 79×103×31 mm, featuring a large color screen and a built-in 1500 mAh battery.\u003c\/p\u003e\n\u003cp\u003e\n\u003cimg alt=\"The FNIRSI oscilloscope in transistor tester mode, with an impressive visualization of various electronic components around the device.\" border=\"0\" src=\"https:\/\/assets.innpro.pl\/19556\/26065\/Reczny-oscyloskop-cyfrowy-Tester-tranzystorow-FNIRSI-DSO-TC3-lifestyle-1.jpg\"\u003e\n\u003c\/p\u003e\u003ch3\u003eA clear screen that won’t let you down in the field\u003c\/h3\u003e\n\u003cp\u003eThe 2.4-inch Full Color HD TFT display ensures excellent visibility even in bright environments and direct sunlight. The color display of waveforms, component symbols, and parameters makes results immediately understandable—no squinting or guesswork required.\u003c\/p\u003e\n\u003cp\u003e\n\u003cimg alt=\"The FNIRSI oscilloscope displaying a sine wave with measurement probes against a dark background.\" border=\"0\" src=\"https:\/\/assets.innpro.pl\/19556\/26065\/Reczny-oscyloskop-cyfrowy-Tester-tranzystorow-FNIRSI-DSO-TC3-lifestyle-2.jpg\"\u003e\n\u003c\/p\u003e\u003ch3\u003eDigital Oscilloscope—Fast and Precise Measurements\u003c\/h3\u003e\n\u003cp\u003eOscilloscope mode enables real-time signal analysis with a sampling rate of 10 MS\/s, a bandwidth of 500 kHz, and a maximum input voltage of up to 400 V (when using a 10:1 probe). The voltage range with a 1:1 probe is 80 Vpp (±40 V), and with a 10:1 probe, it is as high as 800 Vpp (±400 V). Vertical sensitivity is adjustable from 10 mV to 10 V, and the time base ranges from 1 µs to 10 s. Automatic trigger mode, normal and single-shot modes, and the AUTO button allow you to instantly capture a stable waveform—even without experience operating oscilloscopes. The device displays automatic measurements: maximum, minimum, average, RMS, peak-to-peak, frequency, period, and duty cycle. A built-in calibrated 1 kHz square wave facilitates probe compensation.\u003c\/p\u003e\n\u003cp\u003e\n\u003cimg alt=\"The FNIRSI oscilloscope in signal generator mode, mounted on a stand, displaying the waveform selection menu.\" border=\"0\" src=\"https:\/\/assets.innpro.pl\/19556\/26065\/Reczny-oscyloskop-cyfrowy-Tester-tranzystorow-FNIRSI-DSO-TC3-lifestyle-3.jpg\"\u003e\n\u003c\/p\u003e\u003ch3\u003eIntelligent Transistor and Passive Component Tester\u003c\/h3\u003e\n\u003cp\u003eThe FNIRSI DSO-TC3 automatically recognizes and measures NPN and PNP transistors, N- and P-channel MOSFETs (including IGBTs), JFETs, thyristors (SCRs), triacs, diodes, Zener diodes (up to 32 V), diode pairs, as well as resistors (0.01 Ω – 50 MΩ), capacitors (25 pF – 100 mF), and inductors (10 µH – 1000 mH). The device automatically detects component terminals and displays their parameters, which significantly speeds up diagnostics and eliminates the risk of errors. The tester also measures parameters such as hFE, base-emitter voltage, collector current, gate capacitance, and drain resistance.\u003c\/p\u003e\n\u003cp\u003e\n\u003cimg alt=\"Construction details of the FNIRSI oscilloscope showing its durable housing, USB-C port, and control buttons.\" border=\"0\" src=\"https:\/\/assets.innpro.pl\/19556\/26065\/Reczny-oscyloskop-cyfrowy-Tester-tranzystorow-FNIRSI-DSO-TC3-lifestyle-4.jpg\"\u003e\n\u003c\/p\u003e\u003ch3\u003eSignal Generator – 6 waveforms for testing and simulation\u003c\/h3\u003e\n\u003cp\u003eThe built-in DDS generator allows for the generation of sine waves, square waves, pulses, triangle waves, ramps, and DC signals. Frequency adjustable from 1 Hz to 100 kHz, amplitude from 0 to 3.3 V, and duty cycle from 0 to 100%. It’s the ideal solution for testing circuits, learning electronics, simulating signals, and quickly verifying circuit operation—without the need to connect additional equipment.\u003c\/p\u003e\n\u003cp\u003e\n\u003cimg alt=\"The FNIRSI oscilloscope displaying waveform measurements with Vmax, Vmin, Vpp, and frequency parameters on an elegant tabletop.\" border=\"0\" src=\"https:\/\/assets.innpro.pl\/19556\/26065\/Reczny-oscyloskop-cyfrowy-Tester-tranzystorow-FNIRSI-DSO-TC3-lifestyle-5.jpg\"\u003e\n\u003c\/p\u003e\u003ch3\u003eToolbox: Additional Features for Demanding Users\u003c\/h3\u003e\n\u003cp\u003eThe Tools mode offers a range of functions that go beyond basic measurements. The device allows for circuit continuity testing, input voltage measurement in the range of 0–40 V, PWM output, Zener diode testing (0–32 V), temperature readings from DS18B20 sensors (0–85°C), and temperature and humidity readings from DHT11 sensors (0–60°C, 5–95%). Additionally, the built-in infrared decoder automatically analyzes NEC protocol codes, displaying the user code and data code along with the IR signal waveform. A device calibration function is also available.\u003c\/p\u003e\n\u003cp\u003e\n\u003cimg alt=\"Three FNIRSI oscilloscopes demonstrating different operating modes: signal generator, transistor tester, and digital oscilloscope.\" border=\"0\" src=\"https:\/\/assets.innpro.pl\/19556\/26065\/Reczny-oscyloskop-cyfrowy-Tester-tranzystorow-FNIRSI-DSO-TC3-lifestyle-6.jpg\"\u003e\n\u003c\/p\u003e\u003ch3\u003eOne click and you’re done—maximum convenience\u003c\/h3\u003e\n\u003cp\u003eThe device’s operation is designed for speed. One-button mode switching, a logical menu, a HOLD button to freeze the waveform, and intuitive D-pad control mean that measuring, testing, or generating a signal takes literally a moment. Intelligent overvoltage protection safeguards the device from accidental damage. It’s a tool that works with you, not against you.\u003c\/p\u003e\n\u003cp\u003e\n\u003cimg alt=\"The FNIRSI oscilloscope in practical use during the repair of a printed circuit board and the diagnosis of heating devices.\" border=\"0\" src=\"https:\/\/assets.innpro.pl\/19556\/26065\/Reczny-oscyloskop-cyfrowy-Tester-tranzystorow-FNIRSI-DSO-TC3-lifestyle-7.jpg\"\u003e\n\u003c\/p\u003e\u003ch3\u003eFoldable stand—hands-free operation\u003c\/h3\u003e\n\u003cp\u003eThe integrated, foldable stand, adjustable up to 90°, allows you to position the device securely on a table or service bench. Its compact design makes the device small and easy to carry. This allows you to work with both hands while keeping a constant view of the results—without the need for makeshift supports or the risk of the device tipping over.\u003c\/p\u003e\n\u003cp\u003e\n\u003cimg alt=\"The rear of the FNIRSI oscilloscope with the stand extended at a 90-degree angle and the rating label visible.\" border=\"0\" src=\"https:\/\/assets.innpro.pl\/19556\/26065\/Reczny-oscyloskop-cyfrowy-Tester-tranzystorow-FNIRSI-DSO-TC3-lifestyle-9.jpg\"\u003e\n\u003c\/p\u003e\u003ch3\u003eRugged housing, built for real-world conditions\u003c\/h3\u003e\n\u003cp\u003eThe durable ABS plastic housing provides enhanced resistance to drops. The non-slip design and highly responsive touch buttons ensure that the FNIRSI DSO-TC3 withstands heavy use. This device is designed for use in workshops, laboratories, and in the field—ready for the daily challenges of repairs, diagnostics, and electronics education.\u003c\/p\u003e\n\u003cp\u003e\n\u003cimg alt=\"An FNIRSI oscilloscope with labeled control buttons and a view of the IN, DDS, and DSO input connectors.\" border=\"0\" src=\"https:\/\/assets.innpro.pl\/19556\/26065\/Reczny-oscyloskop-cyfrowy-Tester-tranzystorow-FNIRSI-DSO-TC3-lifestyle-10.jpg\"\u003e\n\u003c\/p\u003e\u003ch3\u003eHigh-Capacity Battery and Modern Charging\u003c\/h3\u003e\n\u003cp\u003eThe built-in HQ 1500 mAh lithium-polymer battery provides up to 4 hours of operation on a single charge—enough for 240 minutes of intensive diagnostics. The USB Type-C (5 V) port allows for fast and convenient charging from a power bank, charger, or computer, making the device fully portable, eco-friendly, and always ready for use.\u003c\/p\u003e\n\u003cp\u003e\n\u003cimg alt=\"The interior of the FNIRSI oscilloscope, showing the battery and the electronics board.\" border=\"0\" src=\"https:\/\/assets.innpro.pl\/19556\/26065\/Reczny-oscyloskop-cyfrowy-Tester-tranzystorow-FNIRSI-DSO-TC3-lifestyle-8.jpg\"\u003e\n\u003c\/p\u003e\n\u003ch3\u003eIncluded:\u003c\/h3\u003e\n\u003cul class=\"list-disc pl-5\"\u003e\n\u003cli\u003eFNIRSI DSO-TC3 oscilloscope\u003c\/li\u003e\n\u003cli\u003eMeasuring probe\u003c\/li\u003e\n\u003cli\u003e3 test clips\u003c\/li\u003e\n\u003cli\u003eUSB-C cable\u003c\/li\u003e\n\u003cli\u003eUser manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eFNIRSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eDSO-TC3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDisplay\u003c\/th\u003e\n\u003ctd\u003e2.4-inch Full Color HD TFT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e79 × 103 × 31 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery\u003c\/th\u003e\n\u003ctd\u003e1,500 mAh 3.7 V lithium-polymer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating time\u003c\/th\u003e\n\u003ctd\u003eup to 4 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCharging\u003c\/th\u003e\n\u003ctd\u003eUSB Type-C, 5 V \/ 1 A (5 W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStand\u003c\/th\u003e\n\u003ctd\u003efoldable, adjustable up to 90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHousing Material\u003c\/th\u003e\n\u003ctd\u003eABS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSampling Rate\u003c\/th\u003e\n\u003ctd\u003e10 MS\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBandwidth\u003c\/th\u003e\n\u003ctd\u003e500 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput Impedance\u003c\/th\u003e\n\u003ctd\u003e1 MΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoupling\u003c\/th\u003e\n\u003ctd\u003eAC \/ DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVoltage Range (1:1 Probe)\u003c\/th\u003e\n\u003ctd\u003e80 Vpp (±40 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVoltage range (10:1 probe)\u003c\/th\u003e\n\u003ctd\u003e800 Vpp (±400 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVertical sensitivity\u003c\/th\u003e\n\u003ctd\u003e10 mV – 10 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTime base\u003c\/th\u003e\n\u003ctd\u003e1 µs – 10 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTrigger modes\u003c\/th\u003e\n\u003ctd\u003eAuto \/ Normal \/ Single\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTrigger edge\u003c\/th\u003e\n\u003ctd\u003eRising \/ Falling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWaveform hold\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAutomatic measurements\u003c\/th\u003e\n\u003ctd\u003eVmax, Vmin, Vave, Vrms, Vpp, frequency, period, duty cycle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCalibration signal\u003c\/th\u003e\n\u003ctd\u003e1 kHz square wave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTransistors\u003c\/th\u003e\n\u003ctd\u003eNPN, PNP (β 10–600)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMOSFET\u003c\/th\u003e\n\u003ctd\u003eN-channel, P-channel, IGBT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eJFET\u003c\/th\u003e\n\u003ctd\u003eyes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThyristors\u003c\/th\u003e\n\u003ctd\u003eSCR, TRIAC (trigger voltage \u0026lt;5 V, gate current \u0026lt;6 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiodes\u003c\/th\u003e\n\u003ctd\u003estandard, dual (forward voltage \u0026lt;4.5 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eZener diodes\u003c\/th\u003e\n\u003ctd\u003e0.01–4.5 V (sockets 1-2-3) \/ 0.01–32 V (sockets K-A-A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCapacitors\u003c\/th\u003e\n\u003ctd\u003e25 pF – 100 mF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eResistors\u003c\/th\u003e\n\u003ctd\u003e0.01 Ω – 50 MΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInductors\u003c\/th\u003e\n\u003ctd\u003e10 µH – 1000 mH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBatteries\u003c\/th\u003e\n\u003ctd\u003e0.1–4.5 V (voltage and polarity measurement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWaveforms\u003c\/th\u003e\n\u003ctd\u003esine, square, pulse, triangle, ramp, DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency range\u003c\/th\u003e\n\u003ctd\u003e1 Hz – 100 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAmplitude\u003c\/th\u003e\n\u003ctd\u003e0–3.3 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDuty cycle\u003c\/th\u003e\n\u003ctd\u003e0–100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit continuity test\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput voltage measurement\u003c\/th\u003e\n\u003ctd\u003e0–40 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePWM output\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDS18B20 temperature sensor\u003c\/th\u003e\n\u003ctd\u003e0–85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDHT11 temperature and humidity sensor\u003c\/th\u003e\n\u003ctd\u003e0–60°C \/ 5–95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInfrared decoder\u003c\/th\u003e\n\u003ctd\u003eNEC protocol (user code and data)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eProducer:\u003c\/strong\u003e Shenzhen FNIRSI Technology Co.,Ltd. (CN)\u003cbr\u003e\u003cstrong\u003eAddress:\u003c\/strong\u003e 8F,Weihuada Industrial Park C building West, Li Rong Road, Da Lang Street,, 518109, Shenzhen\u003cbr\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:toby@fnirsi.com\"\u003etoby@fnirsi.com\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eEU Responsible Person:\u003c\/strong\u003e ALTWAY(PL) Sp.z o.o.\u003cbr\u003e\u003cstrong\u003eAddress:\u003c\/strong\u003e aleja Grunwaldzka, 212, 80-266, Gdańsk\u003cbr\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:bok@altway.pl\"\u003ebok@altway.pl\u003c\/a\u003e\u003cbr\u003e","brand":"FNIRSI","offers":[{"title":"Default Title","offer_id":54117985780059,"sku":"084441","price":51.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0865\/0152\/3803\/files\/c6cc124ef13de3f9dd16d99fb64f1cc0.webp?v=1789771271","url":"https:\/\/prime-electronics.eu\/products\/fnirsi-dso-tc3-siggen-3-in-1-transistor-tester-handheld-digital-oscilloscope","provider":"Prime Electronics","version":"1.0","type":"link"}