Leone 44 mm SPDT Normally Closed Magnetic Reed Switch ONSemi MC7812T 12V Voltage Regulator Rating Voltage 12 Volt Maximum

Rating Voltage  12 Volt Maximum Current (@250VAC) 30A(Normally Open)

It's a Finger Print Sensor Module R307

8 channel relay module

Industrial temperature control of moving parts

It is a three-piece smooth matt finished transparent ABS plastics case that provides adequate protection for your Pi as well as access to all ports

Leone 44 mm SPDT Normally Closed Magnetic Reed Switch ONSemi MC7812T 12V Voltage Regulator Rating Voltage 12 Volt MaximumIt is a 44mm single polar double throw clear glass magnetic reed switch. It's a passive electrical switching component that regulates the flow of electricity in a circuit. It consists of a glass envelope containing two ferrous elastic reeds and an insert gas or a vacuum. It's reeds are normally closed and two leads connected with one reed in parallel . Both reeds are normally apart but once the magnetic field approaches the sensor, they will come