MIOYOOW Ultrasonic Ranging Alarm DIY Kit, HC-SR04 Ultrasonic Distance Sensor Soldering Practice Kit with LED Lights, STEM Soldering Electronic Projects for School Learning — Open-Box, 19% Off

Name: MIOYOOW Ultrasonic Ranging Alarm DIY Kit, HC-SR04 Ultrasonic Distance Sensor Soldering Practice Kit with LED Lights, STEM Soldering Electronic Projects for School Learning
Brand: MiOYOOW
SKU: awhd-us-b0dqy22fwc
Price: 15.32 USD
Availability: InStock

Brand: MiOYOOW

Condition: Used - Mint

$15³²

$18⁹⁹

-19% Save $3⁶⁷

Updated: 19 days ago

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Description

【Ultrasonic Distance Sensor DIY Kit】: Build your own ultrasonic distance measurer with this hands-on soldering kit. Measures distances from 0 to 270cm. Real-time measurements are displayed on the digital screen, LED indicators light up according to the measured range, helping you quickly visualize distance changes during operation.

【Adjustable Distance Alarm Function】: Customize your obstacle detection distance using the two onboard buttons to increase or decrease the alarm threshold. When an object moves within the preset range, the buzzer alerts you immediately—great for learning obstacle detection principles.This DIY soldering kit is not only a great way to learn electronics but also a practical tool for everyday use.

【Operational Principle】: The ultrasonic ranging system is based on the reflection of acoustic waves when encountering obstacles. The HC-SR04 ultrasonic sensor measures the time difference between transmitted and received ultrasonic waves to calculate the distance between the obstacle and the sensor.

【STEM School Learning Kit】: The connection that was clearly mapped and labeled on the board makes it easy to solder. In addition to teaching fundamental mechanical and electronic concepts, this soldering practice kit is beginner-friendly, appealing to all skill levels. Perfect for hands-on projects, STEM learning, and obstacle detection applications!

【Paper Installation Manual】: This solder practice kit includes a color-printed user manual that guides you through the installation process step-by-step with clear graphics and text. It makes soldering straightforward and enjoyable. But please note, this soldering kit requires certain foundation of basic electronic theoretical knowledge and soldering and hands-on ability.

After soldering, you'll have a practical ultrasonic distance measurer kit. The real-time measurement is displayed on the digital tube, and corresponding LED lights will light up for a more intuitive data readout.

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Product Details

SKU:: awhd-us-b0dqy22fwc
Model:: GY21652-1
Country:: US
ASIN:: B0DQY22FWC

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Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?

Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $4 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.

What's the difference between open-box and refurbished?

Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.

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