How to choose a digital multimeter

1. Overview: Digital multimeter is the most commonly used digital instrument at present. Its main features are high precision, strong resolution, perfect test function, fast measurement speed, intuitive display, strong filtering ability, low power consumption and portability. As early as the 1990s, digital multimeter has been widely used in China, and it has become an essential instrument for modern electronic measurement and maintenance, and replaced the traditional analog multimeter with the speed of cross-wind sweeping blades. Digital multimeter adopts digital display technology, which improves the previous digital display technology, with clear and intuitive display and accurate reading. It can not only ensure the objectivity of reading, but also conform to people's reading habits and shorten the reading or recording time. These are not available in pointer multimeter. Digital multimeter, also known as DMM, has many types and models. Every electronic worker wants to have an ideal digital multimeter. However, for hand-held (pocket-type) digital multimeter, it should generally have the following characteristics: clear display, high precision, strong resolution, wide test range, complete test function, strong anti-interference ability, relatively perfect protection circuit, beautiful appearance, generous, simple operation, flexibility, good reliability, low power consumption, easy to carry and moderate price. The prices of hand-held multimeters vary greatly in the market. If you are not satisfied with your choice, you will choose a multimeter that you are not satisfied with. Now the technicians of Nanjing X Technology Co., Ltd. will teach you how to choose a digital multimeter based on years of practical experience. Second, the main indicators of the digital multimeter (Resolution) measurement range display digits and display characteristics accuracy (precision) measurement rate input impedance Third, the function of the digital multimeter Classification of digital multimeters: RMM, RMM, industrial universal multimeter, high-end precision multimeter.