Features: 1. Extended infrared decoding protocol format, based on the NEC encoding format, extended support for up to 15 commonly used encoding formats. 2. Added infrared emission/infrared remote control functions, supporting 15 common market coding formats such as NEC and RC5, which is convenient for engineering debugging. 3. The UI interface is optimized, and the device plug-in key bitmap is more intuitive. 4. The startup mode can be set. 5. Automatic shutdown time background software settings, eliminating the trouble of disassembling the internal adjustment. Newly designed ultra-thin body, mini size is easy to carry and does not take up space. Standard in-line, SMD component expansion test socket and infrared emission button board. Optimize the high-voltage start-up method, only start during the test of the Zener diode, which is more power-saving and safer. Upgrade the Type-C charging interface to conform to the technological development trend. Built-in Li-ion battery voltage measurement. The built-in lithium battery voltage is measured before detection. When the battery voltage is lower than 3.0V, it will be forced to shut down. Please charge it. The tester comes standard with a Type-C USB interface. Please use an external 5V power supply or USB charging. When the power is off or the test is completed, put the Zener diode into the Zener diode test area of the test seat, and press the lock handle, press Multi-function key, the tester automatically measures, and the measurement results are displayed graphically when the test is completed. Due to different batches, the appearance, color, and printed words of the product may be different, which does not affect the use. Material: plastic colour: Blue Package Contents: 1 x Precision Transistor Tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.