Are you tired of struggling with faulty optocouplers ?
Explore the OptoTester, the game-changing solution to all your optocoupler testing needs. Measuring at a compact 2.7CM*3.7CM, this bargain-priced module board is made with high-quality 1.6MM FR-4 board material for reliable and accurate testing.
With the OptoTester, you'll never have to worry about faulty optocouplers again. This prov…

Introducing an elegant and sophisticated eye massage instrument, designed to enhance your eye health and beauty.
Crafted from stainless steel and aluminum alloy, with a thick gold layer that is resistant to wear, this device is built to last.
Its massage head, approximately the size of a finger, delivers a gentle and soothing massage experience. With the built-in microcurrent and anti-fal…

Introducing the must-have accessory for professional piano tuners - a set of three triangular-shaped stop blocks made of high-quality felt material.
The stop blocks are designed to prevent adjacent strings from vibrating during tuning, ensuring the most accurate and precise tuning experience possible.
The moderate soft and hard texture of the felt material ensures that the strings are not…

Introducing a powerful and versatile voltage conversion board that provides maximum efficiency and leading-edge power.
With its compact size of 50 x 33 x 10mm, this board is ideal for a variety of brands of LCD monitors and a variety of weak power supply equipment.
It features cutting-edge technology that allows for DC to DC circuit conversion, delivering a stable 5V and 3.3V power supply…

Introducing the versatile and dependable Converter Board - a must-have for any electronics enthusiast.
With compatibility for both 3.3V and 5.0V power and signal, this board offers smooth and reliable performance in a range of settings.
Its industrial design and anti-interference ability make it ideal for use in harsh environments, while the use of imported chips ensures absolute precisio…

Introducing a versatile and reliable tool for measuring tire tread depth - a must-have for any car or bike owner.
Crafted from durable stainless steel and ABS materials, this compact tool is lightweight and easy to carry, making it a convenient addition to any glove box or tool kit.
The clear markings and different colors make it easy to read and use, ensuring accurate measurements every …

Introducing the latest offering - a budget-friendly pack of 95 masks that have passed the GB-2626-KN 95 test.
With a perfect combination of affordability and quality, these masks are designed to elevate your lifestyle by keeping you safe and comfortable during the ongoing pandemic.
Made with high-quality materials, each pack contains 2 pieces of KN 95 masks that offer superior protection …

Introducing the ultimate accessory for Piccolo players - a set of high-quality metal shafts and screws designed to help you maintain and replace your instrument's key components.
With a reliable and durable design, this set is built to withstand the rigors of regular use, ensuring that your Piccolo always sounds its best.
Not only do these shafts and screws deliver superior sound performa…

Introducing the ultimate Sensor & Detector Module for those seeking smooth automation control, unsurpassed automation accuracy, and unrivaled automation performance.
This bargain-priced Auxiliary Test Circuit Board PCB Module offers unparalleled versatility, with the ability to support respiratory blood pressure, blood oxygen, and breathing modules, each with the option of integrating Bluetoo…

This 5N force gauge is a valuable addition to any primary school's physics experiments and teaching equipment.
Its structure is composed of a shell, spring, panel, pointer, and more, making it a reliable and accurate tool for measuring force.
With a maximum range of 5N and a minimum scale of 0.1N, this gauge is perfect for engaging and motivating students while inspiring their creativity.…