🏆【Upgrade】:TC-T7-H is an upgraded of LCR-T7,Automatic detection of NPN and PNP transistors, n-channel and p-channel MOSFET, diode (including double diode), thyristor, BJT, resistor and capacitor and other components, etc.(To avoid malfunctions, pls discharge capacitors and other test items before use.) 🍀【Built-in Battery】:Built-in lithium battery, convenient and effective, the indicator light shows green when fully charged. Warm Reminder: The charging input voltage is 4.5V, please do not use it under overpressure, otherwise the tester will be damaged. 👍【Add IR Decoder】: After the component detection is completed, the infrared remote control at the tester "IR" test hole, press the remote control key, the tester will be display the user code & data code and the corresponding infrared waveform after the successful decoding. 🥂【Auto shut-down Function】: Our advanced electronic transistor tester with automatic shutdown and manual shut-down function.use accessories, more convenient and efficient to complete your project. ✔️【Warranty & Guarantee】:To avoid malfunctions, please discharge capacitors and other test items before use.6 month extended warranty and 24/7 friendly customer service. Any situations, please feel free to contact us by email, especially when you need the manual.