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The MQ-8 can detect hydrogen gas concentrations anywhere from 100-10000ppm
If the color is found on the 3rd band for a 4-band type or the 4th band for a 5-band and 6-band type
Serial Bluetooth Module (Master/Slave) HC-05 can be used in a Master or Slave configuration
74HC1457 is a quad 2-input multiplexer
Working Voltage : 3
Neodymium Magnet HC-SR501 The MQ-8 can detect hydrogenNeodymium Magnet (NdFeB ) is a rare earth magnet made from an alloy of Neodymium, Iron and Boron to form the Nd2Fe14B tetragonal crystalline structure. They have replaced other types of magnets in many applications in modern products that require strong permanent magnets and magnetic fasteners such as electric motors in cordless tools,hard discs drives. Features : Dimensions: 14 mm. Direction of magnetisation: Axial. Max. temperature : 80 C. Quality
US$ 139.99
US$ 139.99
US$ 180.00
US$ 51.95
