Description
Dear friend, Welcome to Our Store, Pls Enjoy Shopping Here!!
We will provide tracking number for every order ( >6usd), We don;t ship order that less than 6USD.
Free Shipping!
Simple metal detector electronic kit DIY
Kits parameters: Supply voltage: 3-5V; Dimensions: 66 * 61MM; Detection range: 5CM; The new board simple metal detector kit with 1.6mm double-sided fiberglass board do to detect the effect of the former site ever! Uses: games and entertainment, security checks, searches the body of metal products, including mobile phones, knives, etc., according to the production principle, also can be designed according to the principles of this suite to produce cars detection, traffic statistics, elevator floor control, production equipment position detection , production equipment design, electronic product design, development of amusement equipment, metal proximity switch, the human body metal detector (there are many IUDs are made of metal, as well as some Red Army veterans in vivo may also metal bullets, the future inner metal body organs the situation will be a lot), you look for gold ingots probe Uchiyama.
After welding debugging method:
The machine L1, L2 using copper wire inductance printed board formed without everyone to produce their own inductance, simple, high success rate! Circuit just use more than a dozen elements, just install correctly, can generally work well. After installing the plug in the power, adjust the potentiometer to just does not sound (without near metal case), printed board antenna close to metal, this time should sound after the away metal should stop sounding, if not stop away from the sound, should potentiometer counterclockwise tune a little bit and try again, until the meet the requirements.
See question:
Long ring after power, it is because there is no start-up in front of the oscillator stage, there may be resistance, transistors and other components misplaced, or circuit board coil has interturn short circuit or open circuit, use a magnifying glass carefully examined. In addition, Q2 Q3 magnification is too low to let the president off too loud.
When commissioning the plate after a good case can be loaded, loaded the box as much as possible close to the shell, so make after loading boxes have a greater detection distance detection range, after the RBI board fixed plastic. Parts without battery, the battery needs to bring their own (5 2).
Welcome to our shop, enjoy the shipping here, you can contact with me freely if any question, usually we will send datasheet,code via email . hope to do business with you
payment:
we only accept the payment by credit card,western union.
We apologize that we cannot accept other payment methods, such as cheque or postal orders .
Shipping:
- We Ship to Worldwide, but Italy, Nigeria, Brazil will take long delivery time .
- Before buying, Please make sure your address is correct. Or not, please correct it before payment
- Ship to worldwide from Hong Kong within 12-24 hours after payment completed received, and will give you the tracking number asap. sometimes we will send it by flat post air mail if just one low price order.Hope you understand.
- we advise shipping by DHL or EMS,and we have gave a discount for you,you can received it in 4-9 business days.
- it takes about 15-30days usually if shipping by CHina/Hong Kong post air mail
Feedback:
the feedback is very important for us, pls leave me a 5 stars feedback if you are satisfied with our service and our items,or pls contact with me if there are some problem with our items.we will solve it asap.
Warranty and Return:
- 12-months Warranty for defective items (excluding items damaged and/or misused after receipt).
Buy with confidence
- Refund or replacement request is available only the requests within 1 week after parcel received & returning the item as the same condition as received.
- Please contact us to request a return authorization. Your name, auction number, and reason for return should be included in the email. All items returned must contain all original packaging materials.
- Please repack the item carefully. Items returned will be tested and a new replacement will be shipped to the buyer immediately when found defective. In the event that a suitable replacement is not available then a refund will be issued. Shipping, handling and insurance fees are non refundable.
- Return shipping is to be paid by the Buyer.
ABOUT US:
we have much more products, pls contact us if you need.welcome to wholesale. MUCH THANKS!!
