What's the difference between 4 versions? LCR-T7 / LCR-TC1 :color screen / M644 chip, two functions are the same! T7 is slightly faster! The TC1 screen is slightly larger and they are all powered by lithium batteries. In addition to measuring resistance, capacitance, inductance, diodes, MOS transistors, thyristors, it can also measure additional voltage regulators, infrared decoding (limited to for Hitachi format) TC-T7-H : is an upgraded version of LCR-T7, Up-to-date / fastest version LCR-TC2 : is upgraded version of TC-T7-H. Compared with TC-T7-H, it has upgraded circuit structure, long-lasting battery life, optimized code, resistance is one thousandth (this is related to repeated test consistency, that is, the same resistance is not repeated test There will be changes, and some repeated tests will have errors) LCR-TC1 Feature: Self test with automatic calibration Size: 70*90*26m/ 2.71x3.58x1.10 inch Display:TFT Screen, Color Screen Diode Range: le than 4.5V Zener Diode:Transistor Detect Area: 0.01-4.5V Zener Diode Detect Area: 0.01-30V Triac Range: IGT le than 6mA Capacitance: 25pF-100mF Resistor: 0.01-50M Inductance: 0.01mH-20H Power Voltage: 3.7V Power: Built-in Rechargeable Lithium Battery Measurement results using TFT graphic display (160x128) One-button operation Auto power off (timeout setting) Built-in high-capacity rechargeable lithium-ion battery Lithium-ion battery voltage detection Support Chinese and English Warning: Built-in lithium-ion battery, it is strictly forbidden to immerse the tester in water or near heat source! Warning: For your personal safety, please strictly observe the specifications and precautions for using lithium-ion batteries! Transistor Detection: After the power-off state or test is completed, put the test component into the transistor test area of the test socket, pre the lock handle, pre the multi-function key, the tester automatically measures, and the measurement result is displayed at the end of the test. Warning: Always discharge the capacitor before connecting them to the tester! The tester may be damaged before you turn it on! Warning: We do not recommend using a tester to measure the battery! The battery voltage must be le than 4.5V, otherwise the tester may be damaged! Component placement: The test socket is divided into transistor and Zener diode test areas, as described in 1.1. Note: Do not perform other operations during the calibration proce to avoid affecting the calibration accuracy! Packing List: 1 x multifunction TFT transistor tester 1 x electronic component group (sent random) 3 x test hook Short the three test sockets, pre the multi-function button shortly, and the tester will automatically calibrate. No other operations are required after disconnecting the short wiring according to the prompt during the calibration proce. TCR-T7 1.1 Introduction - 160x128 TFT display - Multi function key - Transistor test area - Zener Diode test area - IR receiver window - Micro USB Charging Interface - Charge indicator LED 1.1 Features TC-V2.12k is a TFT graphic display Multifunction Tester. l Transistor Tester - - Automatic detection of zener diode0.01-30V - Self test with automatic calibration l IR decoder - Support Hitachi IR coding - IR waveform display - Infrared receiving instruction l Other - Measurement results using TFT graphic display(160x128) - One key operation - Auto Power Off(Timeout Settable) - Built-in high capacity rechargeable Li-ion Battery - Li-ion Battery voltage detection - Support Chinese and English Warning: Built-in Li-ion Battery, it is strictly prohibited the tester immersed in water, or near a heat source! Warning: For your personal safety, please strictly comply with the use of Li-ion Battery specifications and precautions! 1 Operating Instructions 1.1 Key operational definitions Multi-function key has two actions: l Short pre: Pre the key and not le than 10 ms, release key within 1.5 seconds l Long pre: Pre the key more than 1.5 seconds 1.2 Power on In the power off state, short pre the multifunction key, the tester is turned on and automatically measured. l Power on &measurement interface TC-T7-H 128x128 TFT display Multi function key Transistor test area Zener Diode test area IR receiver window Micro USB Charging Interface Charge indicator LED Features: TC-T7-H is a TFT graphic display Multifunction Tester. Transistor Tester: Automatic detection of NPN and PNP bipolar transistors, N-channel and P-channel MOSFETs, JFETs, diodes (including double diodes), N- and P-IGBTs, resistors (including potentiometers), inductors, capacitors, thyristors, triacs and battery (0.1-4.5V) Automatic detection of zener diode(0.01-20V) Self test with automatic calibration IR decoder: Support Hitachi IR coding IR waveform display Infrared re