Type 1 Description: 1,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 , Resistance,Adjustable potentiometer Resistance :0.1 ohm resolution, maximum 50M ohm Capacitor :25pf -100,000 uf Inductors : 0.01mh-20H NEW 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 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 Type 2 Product Description: 1.100% new high quality products. 2. Made of high quality material, durable and practical. 3. Small size, simple application, convenient installation. 4. Efficient and stable performance, long working life. 5. Can automatically identify the foot position and can be displayed as a graphic, large screen graphic display, easy to read and observe. 6. Wide range of applications, with infrared waveform display and infrared receiving instructions. Lithium battery power supply: 3.7V Working current: 50ma Capacitance: 25pF-100mF Resistance: 0.01-50M Inductance: 0.01mH-20H Battery: 0.1-4.5V Size: 80*60*20mm Battery usage: Come with rechargeable lithium battery (3.7V 300mAH) Easy to use, simply place the component in the testing area and press the START button. Start automatic measurement Capable of testing parameters related to diodes, transistors, resistors, capacitors, and inductors Capable of testing transistors, MOS transistors, thyristors, Darlington transistors, IGBT ( note: high-power thyristor, IGBT, may not be tested accurately ) And can automatically recognize the foot position and display it in graphics Can test the encoding value of infrared remote control (only supports NEC format) The instrument comes with a lithium battery and does not require an external battery to be equipped with a USB charging cable Attention: Before testing the capacitor, it is necessary to discharge it first. Otherwise, it will directly damage the instrument This instrument is an active instrument and should not be used to measure live circuit boards. May cause damage to the circuit board 1 x Transistor Tester