Build A Metal Detector Wand Kit (4K) скачать в хорошем качестве

Build A Metal Detector Wand Kit (4K)

I got a "DC3-5V Simple Metal Detector Electronic Production Kit DIY Teaching Spare Parts Technology Training Welding Metal Detection". I put it together and test it. You also might want to read the seller's info, from what I found, it "exaggerates" just a tad. Here's another metal detector kit "$2 Metal Detector Kit"    • $2 Metal Detector Kit (4K)   ================================================= FROM THE SELLER: Product details of DC3-5V Simple Metal Detector Electronic Production Kit DIY Teaching Spare Parts Technology Training Welding Metal Detection 1: Simple assembly 2: The appearance is small and exquisite 3: Wide range of uses, game entertainment, security inspection, search of metal products on the body, etc. 4: High sensitivity 5: Soldering Learning DIY Kit Kit parameters: Supply voltage: DC3-5V Battery model: CR2032 (delivery without battery, customer needs to prepare) Dimensions: 14.9*2.2CM Uses: game entertainment, security inspection, search for metal products on the body, etc. Purpose of this Metal Detector Principle Example 1: If you want to detect whether there is a car passing by on a certain road, because the height of the car chassis is 0.5 meters or more from the road, and the cement will be buried at a depth of 5-10CM, so you can bury a coil with a diameter of 1 meter on the ground. Stable, accurate and reliable detection of whether there is a car on it is of great practical value in highway traffic statistics and parking lot prohibited area statistics. Example 2: A sensor is required on each floor of the elevator controller to detect whether the elevator has reached the stop position. If a mechanical travel switch is used, there will be life and reliability factors; if a photocoupler is used, there will be a long time Dust deposition failure; therefore, the only way is to install a metal detector to determine whether the circuit is on or off based on the presence or absence of metal. This will have high practical value in many equipment and machines. Package includes: PCB board X13V Buzzer X1100UF25V electrolytic capacitor X1104 ceramic capacitor X2222 polyester capacitor X2220K 0.25W Resistor X12.2K 0.25W Resistor X1100 ohm blue and white potentiometer X19018 triode X19015 triode X19012 triode X112D07 toggle open X12032 battery holder X1 Warranty Type No Warranty