Accessories

When you flick the turn-signal stalk, in the car, you hear a steady “click-click-click.”  Ever wonder where that sound comes from? It’s the automotive flasher relay – a small universal relay that opens and closes the circuit several times per second.  Each click tells you, the driver, that the turn signal is active, while the […]

Have you ever watched an automated assembly line, with dozens of motors, sensors, and actuators moving in perfect sequence without a single error? What keeps them all in step? Not by chance, but by a hidden conductor. Many people think of microprocessors or microchips as the real controllers, but industrial systems rely on a specialized

If you live in North America now, you will find that most of your home appliances are printed with ETL or UL marks like following: Both of these marks prove that the product is certified by UL or ETL related laboratories. So what are ETL and UL? What are the differences between them? How to

Both thermocouples and Resistance Temperature Detectors(RTD) are called temperature sensors, and they are widely used in temperature control systems (especially when used with PID temperature controllers) as detectors to measure temperature, but what is the difference between these two temperature sensors? In this article we will provide complete knowledge about them, now let’s get started!

In the power world, contactors are a critical device that play an important role in switching, controlling and protecting circuits. As an electrical component, the main function of a contactor is to connect or interrupt the path of current in a circuit. The application of contactors almost lays the foundation for electrical technology. Therefore, a

Both water level relays and float switches can be used for water supply and drainage, but which one is better to use?  The content below will provide you with complete knowledge about them, let’s take a deeper look. What is a water level relay? A water level relay is an electronic product used to control

Today, we will introduce the usage of foot pedal switches. Foot pedal switches are widely used in medical equipment, stamping machines, welding equipment, textile machinery, and printing machinery.  In the electronics industry, they are utilized in applications such as small robots and terminal machines, with options for automatic and inching operations using foot switches. By stepping on the foot switch, a certain

what is an hour meter? An hour meter is an instrument to record the total time consumed by a machine or an equipment. It is also called elapsed time counter, hour counter, time accumulator, time meter and time recorder. The hour meters can be easily found in UV disinfection machines, which record the UV light

In the real world, there are two main types of power: DC power and AC power. But what are these two types of power? What is the difference between them? And how do you convert DC power to AC power or AC power to DC power? This article will provide you with a more detailed

Have you ever paid attention to the distribution box in your home? If you have a chance to open the door of the distribution box, you will find many components neatly mounted on the DIN rail. Do you know what they are? Actually, these components are called circuit breakers, or you can simply call them

The float switch is a structurally simple component used for liquid level control. It does not have complex circuits and is not susceptible to interference.  As long as the correct material is chosen, it can be used with any type of liquid, pressure, or temperature, making it widely applicable in water treatment equipment and other

A residual current device (RCD) is a common electrical device used to detect whether there is a leakage in a circuit and cut off the circuit immediately when a leakage is found. In domestic and commercial environments, the role of earth leakage protectors is crucial because it can prevent safety accidents such as electric shock