It is to distinguish between true and false.

A genuine Fluke multimeter has a CE mark, which can be seen on the test leads. There are generally no fakes. This is the most basic and effective way to distinguish between authenticity and falsehood.

The Fluke brand. Fluke was founded in 1948 and provides high-quality measurement and fault detection products for various industrial fields. FLUKE has a rich product line, including digital multimeters, infrared thermal imaging cameras, power quality analyzers, process calibrators, portable oscilloscopes, vibration testers, clamp meters, etc. Fluke products are highly praised by users for their accuracy, durability, innovation, and portability. It can be said that Fluke multimeters are famous for their accuracy and are also extremely durable.