Price: [price_with_discount]
Features:
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
Specifications:
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 statistics on prohibited parking areas.
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 Included:
PCB board X1
3V Buzzer X1
100UF25V electrolytic capacitor X1
104 ceramic capacitor X2
222 polyester capacitor X2
220K 0.25W Resistor X1
2.2K 0.25W Resistor X1
100 ohm blue and white potentiometer X1
9018 triode X1
9015 triode X1
9012 triode X1
12D07 toggle open X1
2032 battery holder X1
