Transistor Tester GM328A M328 M328LCD MK-328 MK-168 LCR-T4 LCR-T5 TS-M8N EZM328

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CASE FOR LCR-T4： Attention please: LCR-T4 Transistor isn't included Description： 100% brand new and high quality Shape: Same as the picture show Clear Acrylic Housing : Suit For: LCR-T4 Transistor Tester Diode Triode Capacitance ESR Meter Note: It is DIY Parts, Not Assembled   LCR-T4： Features : 1,2013 latest M328 version of the software ,more functions.Chip: Atmega328 2.128*64 big Backlight LCD display,only 2mA when stand by. 3,Using 9V battery (Not included) Test ranges: Inductors, capacitors , diodes, dual diode , mos, transistor, SCR , the regulator, LED tube , ESR, Resistance,Adjustable potentiometer Resistance :0.1 ohm resolution, maximum 50M ohm Capacitor :25pf -100,000 uf Inductors : 0.01mh-20H Function: 1:Automatic detection of NPN and PNP transistors, n-channel and p-channel MOSFET, diode (including double diode), thyristor, transistor, resistor and capacitor and other components   2: Automatic test the pin of a component, and display on the LCD 3:Can detect the transistor, MOSFET protection diode amplification coefficient and the base to determine the emitter transistor forward biased voltage   4: Measure the gate and gate capacitance of the MOSFET threshold voltage 5:Use 12864 liquid crystal display with green backlight Specifications: For you reference 1,One -button operation, automatic shutdown . 2,Only 20nA shutdown current. 3,Automatically detect NPN, PNP bipolar transistors , N -channel and P -channel MOS FET, JFET , diodes , two diodes, thyristors small power unidirectional and bidirectional thyristor.   4,Automatic identification components pin arrangement . 5,Measuring bipolar transistor current amplification factor and base - emitter threshold voltage. 6,Via the base - emitter threshold voltage and high current amplification factor to identify Darlington transistors. 7,Can detect bipolar transistors and MOS transistors protection diodes. 8,Measuring the gate MOS FET threshold voltage and the gate capacitance. 9,Can simultaneously measure two resistors and resistor symbol is displayed. Displayed on the right with a decimal value of 4 . Resistance symbol on both sides shows the pin number. So you can measure the potentiometer. If the potentiometer wiper is not transferred to an extreme position , we can distinguish the middle and both ends of the pin.   10,Resistance measurement resolution is 0.1 ohms , 50M ohms can be measured . 11,Can measure capacitanceCan measure capacitance of 30pF-100mF , resolution 1pF. 12.2uF more capacitors can simultaneously measure the equivalent series resistance ESR values. The two can be displayed with a decimal value , resolution 0.01 ohms.   13,Can be in the correct order and the diode symbol display two diodes , and gives the diode forward voltage. 14.LED is detected as a diode forward voltage higher . Combo of the LED is identified as two diodes. 15,Eeverse breakdown voltage is less than 4.5V Zener diode can be identified. 16,Can measure a single diode reverse capacitance. If the bipolar transistor connected to the base and collector or emitter of a pin , it can measure the collector or emitter junction reverse capacitance . 18 can be obtained with a single measurement rectifier bridge connection.     Notice: Before measuring capacitance , the capacitor must be discharged , otherwise very likely damage the meter .   LCR-T5： "Product does not contain 9v battery, you must bring your own !!!   1. Using ATmega328 microcontroller. 2. 2x16-character LCD display the results. 3. One button operation, automatic shut-off. 4. Shutdown current is only 20nA, support for battery operation. 5. Low-cost version without crystal, automatic shutdown. 1.05 k version of the ATmega168 or ATmega328 software in sleep mode when no measures to reduce energy consumption. 6. Automatic detection PNP type and NPN bipolar transistors, N, P-channel MOSFET, JFET, diode, a double diode, thyristor SCR. 7. Automatic detection of pin layout. 8. Measuring current amplification factor of the bipolar transistor and the emitter threshold voltage. 9. Darlington transistor amplification factor can be identified by the high threshold voltage and high current. 10. For bipolar transistor, MOSFET protection diode test. 11. measure the threshold voltage and the gate capacitance of the MOSFET. 12. supports two resistance measurements and show the highest four numbers symbols and units. both ends of the resistor symbol is shown connected to the tester probes number (1-3). therefore, the potential can also be measured. If the potentiometer is set to its end, the tester can not distinguish between the middle and end of the pin. 13. resistance measurement resolution is 0.1 ohms, the highest measured value 50 M ohms. 14. can be detected and measured a capacitor. Maximum four numbers and units. Values can be from 25pF (8 MHz clock, 50pF @ 1 MHz clock) for 100mF. resolution up to 1 pF (@ 8 MHz clock). 15. can be more valuable for 2 UF capacitor equivalent series resistance (ESR) measured capacitance value. resolution of 0.01 ohms and a two-digit numeric display. This feature requires at least 16 K Flash ATMEGA (ATmega168 or ATmega328). 16. two diodes that can display symbols in the right direction. Furthermore, the forward voltage drop displayed. 17. diode voltage drop detection LED is much higher than normal. Led two detected as double diode. 18. Zener diode can be detected, if the reverse breakdown voltage is below 4.5 V. This will appear as two diodes, can only be determined by the voltage. probe across the diode symbol is the same, in such a case, it is possible to 700mV threshold voltage close to the true recognition anode of diode! 19. **** this year to understand, do not turn on the **** if more than three diode type parts inspection, failure to follow to establish the display number diode another message. this will only happen if the diode is connected to all three probes and at least one diode. In this case, it must only connect the two probes and start the measurement again, one by one. 20. Measure a single capacitance diode reverse. Bipolar transistors also able to measure, if connecting the base and the collector or emitter. Twenty one. only a measure to find full-bridge connection. twenty two. 25pF capacitor value is lower than usual undetectable, but with a diode in parallel or at least 25pF capacitor in parallel. In this case, you have to subtract part shunt capacitance values. twenty three. less than 2100 ohm resistance measure inductance, if you have at least 16 K ATMEGA flash. range from 0: 01mH 20 hours, but the accuracy is not good. the results of the measurements show only a single connection element. twenty-four. test time is of about two seconds, capacitance and inductance measurements will only take a long period of time. 25. The software can be set to automatically turn off the power measurement of times before. 26. built-in self-test function with selectable clock frequency of 50Hz signal control the precision and wait for the call (ATmega168 and ATmega328). 27. of the equipment for measurement of internal resistance and optional calibration offset zero of the self-test capability of the output port (ATmega168 and ATmega328). need a 100nF 20 uF capacitor connected to compensate for the analog comparator between pins 1 and 3 of the offset voltage. this can reduce the measurement error over 40 uF capacitor. with the same voltage on the capacitor internal calibration reference voltage is found to internal adjustment reference measurement ADC gain. if the current test exceeds the holding current, the thyristor and triac it can be detected. but some current over the semiconductor tester capable of providing the SCR trigger and current triac. Available test current is only about 6mA! Note that all functions have only used single-chip program memory as more ATmega168."   MG328： "Description   the one shell use for two type tester! inlcude the Transparent shell and Screw not include the tester"   GM328A： "Specification:   Size: 75 x 7 2 x 20 mm(L x W x H) Tpye: GM328A Working current: 9V voltage, stable working current of about 20mA.   Features:   1. Using 2015 V1.12 version of the software. 2. Power supply using 9V stack battery. 3. The download interface is standard 6 wire program. 4. The 12864 dot matrix LCD screen, display more abundant in content, with pictures. 5. The impact of the accuracy of the relevant resistance using 1/1000 thin film resistors, and the rest are also used in the 1/100 film resistor.   Basic function:   1. Can automatically detect PNP, NPN bipolar transistor 2. Automatic identification of the components of the pin. 3. Capacitance can be measured 4. Can detect bipolar transistor and MOS tube's protection diode. 5. Can be shown with a decimal value of two, resolution of 0.01 ohm. 6. Reverse breakdown voltage below 4.5V regulator can be identified. 7. Gate threshold voltage and gate capacitance of the MOS field effect transistor. 8. Can simultaneously measure two resistance and the resistance symbol display. 9. The resolution of resistance measurement is 0.1 ohm, which can be measured to 50M ohm. 10. 2uF above the capacitor can simultaneously measure the equivalent series resistance ESR value. 11. Two diodes can be displayed in the right order and the diode symbol, while the forward voltage of the diode is given. 12. Only a single measurement can be obtained the connection mode of the rectifier bridge.   Extended functionality (via menu selection):   1. Can produce 1Hz-2MHz square wave signal. 2. Can produce a fixed frequency, but the pulse width of the pulse wave, a short press key width of 1% increments, a long press the button to increase the width of 10%. 3. Separate capacitor and ESR function can be started by menu."   M328-OLED： Description   NOTE: This is a DIY kit !!!! Multi-functional transistor tester for automatic detection of NPN and PNP transistors, N-channel and P-channel MOSFET, diodes, thyristors, resistors, capacitors or other devices. Also can be used as frequency meter or square signal and PWM signal generator.   Features: Digital 12864 LCD display, easy to read. Can be powered by 9V battery(not included). Automatically detect NPN and PNP transistors, N-channel and P-channel MOSFET, JFETs, diodes, inductors, resistors, capacitors, thyristors or other devices. Support 2 resistors measurement, also support potentiometer measurement. Automatically test the pins of a component and show on the display. Measure the gate threshold voltage and gate capacitance of the MOSFET. Measure bipolar transistor current amplification factor and base-emitter threshold voltage. Short detection time: only 2 seconds. It costs more time for bulk capacitor detection. Can be used as signal generator and frequency meter. Different built-in square signals from 1Hz-2Mhz are available to choose. It can generate 1-99% PWM(pulse width modulation) signals.   EZM328： Features:   Add function :   Rotary coding switch   Rotating menu   Frequency meter interface   Precision reference source.     I. Overview     1 using the 2016 version of the latest V1.12K software, using M328 chip,, more features, in addition to the basic functions, as well as extensions.     2 micro-controller uses 8MHz external crystal, the measurement accuracy is better.     3 affect the accuracy of the relevant resistance using a thousandth of a metal film resistors, and the remaining one percent is also used metal film resistors.     4.LCD using 12864 LCD screen that can display measured data and graphics.     5 main chip dual in-line and with a socket, ideal for electronics enthusiasts upgrade or replace the chip.     6 uses 9V laminated battery.     7 All components are made ??of high quality genuine. LCD screen for low power backlit screen, the backlight current of about 2mA, so after boot time has backlighting for easy use in the dark.     8 Dimensions: 72 (W) X 85 (high) X22 (depth) mm.     9 Weight: about100grams.     The Working Current: 9V voltage, stable operating current of about 20mA.       A, the basic function   1 one-button operation, automatic shutdown.   2 shutdown current is only about 20nA.   3.Adopt 8MH crystal.   4 can automatically detect NPN, PNP bipolar transistors, N-channel and P-channel MOS FET, JFET, diodes, dual diode, thyristor small power unidirectional and bidirectional thyristor.   5 automatic identification pin arrangement of components.   Current amplification factor and base 6 measuring bipolar transistor - emitter threshold voltage.   7 can be extremely via the base - emitter threshold voltage and high-current amplification factor identification Darlington transistors.   8 protection diodes can detect bipolar transistors and MOS transistors.   9 measuring MOS FET gate threshold voltage and gate capacitance.   10. can simultaneously measure two resistors and resistor symbol is displayed. 4-digit display with decimal value 11 on the right. Resistance symbol is displayed on both sides of the pin number. So you can measure the potentiometer. If the potentiometer wiper position will not be transferred to a certain extreme, we can distinguish between the middle and both ends of the pins.   11 resistance measurement resolution is 0.1 ohms, 50M ohms can be measured.   12 can measure capacitance. Capacitor symbol is displayed on the right display values ??can be displayed with a decimal four values. Can measure the capacitance of 30pF-100mF resolution 1pF.   13.2uF more capacitors can measure the value of the equivalent series resistance ESR. The two values ??can be displayed with a decimal, resolution 0.01 ohms.   Two diodes 14 can be displayed in the correct order and a diode symbol, and gives the diode forward voltage.   15.LED is detected as a diode, a higher forward voltage. Combo of the LED is recognized as two diodes.   16. reverse breakdown voltage is less than 4.5V zener diode can be identified.   17 can measure a single diode reverse capacitance. If the connection base and collector of the bipolar transistor or the emitter of a pin, or the reverse can be measured or the collector junction capacitance of the emitter junction.   18 with a single measurement can get connections rectifier bridge.   19 Although the measurement limit capacitance of 25pF, but you can be measured by the measured capacitance with a known volume of at least 25pF capacitor in parallel, then the measure will result in parallel capacitance obtained by subtracting         B. extensions (via menu selection, and the user may want to add a few components, suitable for DIY)     1 can measure 1Hz-2MHz frequency. Above 25kHz resolution of 1Hz, the low-frequency measurements using the cycle, the resolution can go to 0.001MmHz.     2 can measure DC voltages below 50V.     3 can produce a square wave signal of 1Hz-2MHz.     4 can generate a fixed frequency pulse width but variable pulse wave, short key width by 1% increments, the longer the key width by 10% increments.     5. Can be activated by the individual capacitance and ESR menu functions, ranges 2UuF-50mF, since the amplitude of the measured signal is only 300mV, it is possible to measure the road. (Translation: due to non-4-wire measurement, the measurement lead resistance may lead to large errors, particularly small ESR measurements).     6 by adding a rotary coding switch, convenient menu item selection.   TS-M8N： This multi-functional transistor can be widely used to automatically detect NPN and PNP transistor, capacitor, resistor, ESR, diode, triode, N-channel and P-channel MOSFET quickly. Features: It can test NPN and PNP transistor, capacitor, resistor, ESR, diode, triode, N-channel and P-channel MOSFET quickly. Automatically test the pin of a component, and display on the back-light LCD screen. Detect transistor and MOSFET protection diode amplification coefficient, and the base to determine the emitter transistor forward biased voltage. Measure the gate and gate capacitance of the MOSFET threshold voltage. One-button operation, automatically detect and shutdown. When opened, it will show the voltage of the battery. You can test two resistors and the ESR of two capacitance at the same time. It can display the values to two digits after decimal point. It can test the capacitance from 30PF to 20000UF, resistor from 0.5Ω to 50MΩ. Specifications: Color: Dark Green Power Mode: 9V Battery (Not Included) Display: 6.5 * 1.5cm LCD Display Working Current: 40mA Standby Current: 25mA Capacitance: 30PF to 20000UF Resistance: 0.5Ω to 50MΩ Inductance: 0.01MH-10H Item Size: 8.5 * 5.3 * 2cm / 3.35 * 2.09 * 0.79in Item Weight: 51g / 1.8oz Package Size: 15 * 9 * 2cm / 5.91 * 3.54 * 0.79in Package Weight: 52.5g / 1.86oz   MK-168：Features:   2013 the latest version of the software, the function than the M8 version more. Microcontroller using 8MHz external crystal, a better measurement accuracy. Key resistance using a thousandth of a metal film resistors, the remaining a hundredth metal film resistors. Use 9V battery(not include),please screw the back case and fix the battery. LCD backlit LCD screen with low power consumption, compared with the whole power consumption is almost negligible, so the light is always there, easy reading in the dark. Size: 125X80X32(mm) Weight: 207g     Technical performance:   1. Automatic recognition transistor type, pin, current magnification and the base - emitter junction voltage measured at the same time. 2. Automatic Identification of N and P MOSFET type and pin,measure the voltage and capacitance. 3. Automatic identification the diode pin, measurement the forward voltage. 4. Automatic identification of small power triac pin. 5. Measuring resistance. 6. Measuring inductance. 7. Measuring Capacitance. 8. One button operation, automatic shutdown. 9. 20nA current shutdown is only about. 10. Using 8MH crystals. 11. Can automatically detect NPN, PNP bipolar transistors, N-channel and P-channel MOS FET, JFET, diodes, dual diode, thyristor small power unidirectional and bidirectional thyristor.   MK-328： Feature:   ---Use the latest M328 version software, more function than M8 version.   ---The microcontroller adopts 8 MHz external crystals oscillator, better measurement accuracy   ---The related resistance of affecting the accuracy use 1‰metal film resistor,   and the rest also use 1%metal film resistor.   ---Use backlight low-power consumption LCD screen, compared with the   overall power consumption is almost negligible, convenient to read the data in the dark.   ---Built-in laminated 9V batteries with external DC power jack, long time using   makes more economic.   ---High quality component and element   ---Overall dimensions: 125 x80x32 (mm)   ---Weight: 200g

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