Also known as Multimeter or Multitester , Avometer ( AVO {Ampere-Volt-Ohm} meter) . It is an electronic measuring instrument , where various measurement functions are combined in one unit. A simple multimeter can measure voltage , current and resistance . An analog multimeter displays text using a moving indicator with a galvanometer. Digital multimeters have a numeric display / digital display or LCD display and the value of measurement is displayed in digital numbers. Digital multimeters are now widely used for accuracy , but analog multimeters are still preferred in some cases , for example when a rapidly changing quality monitor is required. A multimeter can be a necessary instrument or bench instrument near the hand for initial fault detection and external repair work , which can measure a very high level of accuracy. It can be used in a wide range of industries to solve electrical problems and in the field of electronic devices , motor controls , household appliances , electrical supplies and wiring systems. Multimeters of various types and prices are now readily available. Cheap multimeters can cost up to US ১০ 10, or less than টাকার 600 , and laboratory-grade models with certified grading can cost up to ইউ 5,000.