
Electrical and electronic

Electronic devices use direct current (DC) to operate. Meanwhile, households use alternating current (AC) with high voltage. Therefore, it is necessary to reduce the voltage and convert from AC to DC using a charger or charger. So what are the popular types of power supplies and how to choose accordingly? Let's follow along in the article below!

Hydraulic oil is a popular choice in the maintenance of industrial equipment, especially plastic presses, paper and woodworking machines, metal presses, loaders, excavators, hydraulic brakes, and Many other devices use hydraulic systems.

A fiber optic cable tester is a specialized device used to test and evaluate important parameters of fiber optic cables. The device helps identify break points, measure loss at solder points, loss across the entire line, loss at adapters and connectors, as well as measure transmit and receive power.

A water temperature thermometer is probably an indispensable device in the daily activities of many households, from checking the temperature of water for baby's milk to cooking. However, finding a thermometer to measure boiling water temperature that ensures high accuracy, durability and safety for users is not easy. In the diverse thermometer market with hundreds of thousands of products, this article will suggest you the best thermometer models to measure boiling water temperature. Let's take a look to choose the product that suits your needs!

Permissible conductor temperatures play a key role in the design and operation of electrical systems. Each type of material and technical standard will have different temperature limits to ensure safety and system performance. In this article, EMIN will help you learn more about this issue in more detail!
![[Question] Should I buy a used temperature gauge?](/s-cdn/96/96cc566a1bb7bb471ea59d5e9d25cc0ee3f2a41d.jpg)
Should I buy a used thermometer or not is a question many people ask. Currently, buying used temperature measuring devices is increasingly popular with many consumers and businesses. However, is this the right decision?

Spectrometers are used in laboratories and scientific research centers. They are usually electronic devices with function keys and large results display screens. The main function of a spectrophotometer is to separate, quantify and analyze solutions or solids. Engineers can use the machine to study properties, determine color, examine material composition and structure, and determine content. There are many different types of machines and models, suitable for each specific type of job. Currently, there are two popular types of spectrophotometers: handheld spectrophotometers and desktop spectrophotometers.

The desktop multimeter is designed to be durable and has extremely outstanding measurement capabilities, this product line is certainly an indispensable device for electrical engineers and researchers. But how to choose the best desktop multimeter? Let's find out in the article below!

Soil resistance is an essential technical parameter that technicians need to understand. The ground resistance meter is a good choice to assist users in determining technical parameters about the spread of current in the ground. Help them calculate and design lightning protection points, voltage balance, as well as build telecommunications, signal and data transmission projects effectively.

Metal hardness is a common concept in industry. So what is metal hardness and why is determining hardness important? Does using a handheld metal hardness tester help increase work efficiency? EMIN will explain to you in the article below!
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