Qualifications and honors A number of certifications Unilead has been committed to providing more innovative and cost-effective technology products to more different customers around the world. In addition, Unilead has obtained a variety of safety certifications such as European CE, American UL and Chinese CMC. The full range of multimeters can be measured by the third party Reject false standards and security guarantees Smart large capacitance multimeter One machine is equal to a multimeter + capacitance meter Only the UT33D+ does not have a capacitance measurement function Intelligent anti-burning, full-gear protection And there are 2 fuses on the board A two-pronged approach to protect the multimeter Zero-fire line measurements If there is a Live file, hit the Live file, and use a single meter pen to insert the measurement, and you can distinguish the zero live line If there is an NCV file, hit the NCV file, and use a single meter pen to insert the measurement, and you can distinguish the zero live line Only the UT61E and UT39E do not have this feature Four-and-a-half-digit display Precision crushes many multimeters NCV non-contact electrical inspection function Full-scale protection, 4-bar intensity indication and beep indication Only the UT33B:/UT39E/UT61E does not have NGV non-contact power verification function Double-layer protection, 2 meters anti-fall The outer red protective layer is made of high-quality rubber to prevent shocks and dust Intelligent upgrade of human-computer interaction Description of the functions of the 8 major indicators makes the measurement more intuitive IUT89X/UT89XD indicator function description This feature is only available on the UT89X/UT89XD LCD auto backlight flashlight function This feature is only available on the UT89X and UT89XD Equipped with a flashlight and automatic backlight on the screen, it is convenient for users to work in a dark environment Fuse blowing alarm prompt This feature is only available on the UT890D+/UT890C Fuse (fuse) is also known as current fuse, which mainly plays the role of overload protection. General multimeter The current level will be equipped with a fuse to protect the internal circuit of the multimeter. Remove the battery cover to check the condition of the fuse Due to the unintentional or incorrect operation of some users, the current level is connected to the circuit in parallel, and the fuse will Immediately fuse to protect the circuit, (plug the wrong hole, the fuse will be burned, any gear wrong will not burn the meter) But because the fuse is almost silent, many users will not find or even know that the fuse can be directly disassembled and replaced UT890 series multimeter adds automatic detection of fuse blowing alarm device, when the fuse blows, the multimeter will beep alarm, and display "FUSE" on the screen to remind the user of the basic condition of the fuse, and at the same time, you can also use this function to judge whether the fuse has been installed properly. When the fuse is in an abnormal state, the multimeter screen shows "FUSE" flashing and beeps for alarm