HU-074 DIY Metal Detector Kit PCB Board LED Flash Alert Buzzer Alarm Adjustable Sensitivity 3-5V Educational Electronics Soldering Project
Guaranteed Safe Checkout

Free Gift
Welcome to Roymall, your professional website for purchasing premium department store gifts. We highly value and appreciate your support, and we want to express our gratitude by adding an extra touch of excitement to your purchases. When you shop with us, you not only get to enjoy high-quality products that enhance your lifestyle, but you'll also receive an exclusive free gift with every order you place. Ready to explore our collection and find your perfect gifts? Browse our selection of premium department store items, place your order, and look forward to the excitement of your free gift arriving alongside your purchase.Shipping Policy
We will work hard to deliver items to you after receiving your orders and make sure they arrive safely. Delivery details will be provided in your confirmation email.In most cases, orders are processed within 2 days.Under special circumstances, it will be delayed as follows: When you place an order on Saturday, Sunday or public holidays, it will be delayed for 2 days..Normally, it needs 5-7 working days (Monday to Friday) without being affected by flight delay or other environmental factors..Because our shipping service is worldwide so the delivery times will depend on your location so it may need a few times and please wait patiently if you are in remote districts or countries.1. Return & Exchange Policy
We only accept items purchased from roymall.com. If you purchase from our local distributors or other retailers, you cannot return them on our side. Final sales items or free gifts are not acceptable for a return. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.After receiving return instructions from us, please package up your returned items and drop your package at the local post office or another courier.We will process your return or exchange item within 3-5 working days after we receive it. The refund will be processed and credited automatically to your original method of payment.No returns or exchanges can be accepted if the product was custom produced, including custom size, custom color, or custom printed.Need more help, please contact us. service@roymall.com or Whatsapp: +8619359849471
2.Refund Policy
You'll get a full refund or 100% store credit after we receive the returned package and check it. The refund will be processed and credited automatically to your original method of payment. Please note that shipping costs and any duties or fees are not refundable. The extra shipping costs are non-refundable once the package has been shipped. You are responsible for paying these fees and we’re unable to waive or refund them, even if the order is returned back to us.Once we received and confirmed your returned item, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.If you have any problems regarding the refund process, please contact us. service@roymall.com or Whatsapp: +8619359849471Specifications:
Operating Voltage: 3-5V
Operating Current: 23mA (during normal alarm conditions)
Static Working Current: 3.7mA (when not alarming)
Power Supply: 2x 3V Button Batteries(Not Included)
PCB Dimensions: 60mm x 185mm
Note: This is an unassembled kit, you will need to solder.
Features:
1. Accurate Metal Detection: This metal detector kit is specifically designed to identify metals with high precision. Suitable for both beginners and enthusiasts, the kit ensures reliable detection of various metal objects with minimal false positives.
2. LED Flash Alert: Equipped with multiple red LEDs, the detector provides clear visual alerts upon detecting metal objects. This feature enhances visibility and makes it easier for users to know immediately when a metal object is found.
3. Buzzer Alarm System: An integrated buzzer alarm offers an audible warning when metal is detected. This dual alert system ensures users are both visually and audibly notified, boosting effectiveness during use in various environments.
4. Adjustable Sensitivity: The metal detector includes an adjustable potentiometer, allowing users to fine-tune the sensitivity according to their specific needs. This customization feature enables better performance across different detection scenarios.
5. DIY Assembly Opportunity: The kit is a fantastic project for DIY enthusiasts, providing an educational experience in electronic assembly and soldering. Detailed video instructions are included, making it easy to assemble, whether you are a novice or seasoned hobbyist.
Package Included:
2 x 100u03a9 Resistor
2 x 2K Resistor
3 x 10K Resistor
1 x 200K Resistor
3 x 102 Capacitor
4 x Triode S8050
2 x Triode S9012
1 x Potentiometer 100u03a9
2 x Chip Capacitor 0.1u03bcF
1 x Self-Locking Switch
2 x Electrolytic Capacitor 47u03bcF
5 x Red LED
1 x Active Buzzer
2 x Button Battery Holder
1 x Circuit Board
1 x Instruction Manual