As you can see in the schematic above, this automatic air curtain door sensor switch design uses a common magnetic door switch for automatic on/off of the air curtain. The magnetic door switch ...

A Magnetic Door Switch is a type of sensor used to detect the position of a door, typically by using a magnet and a reed switch. When the door is closed, the magnet aligns with the reed switch, ...

The Flux Phenom Magnetic Screen Door has over 62,000 reviews on Amazon. (Getty Images) Summer in Canada has plenty of positive aspects — like fresh local produce, longer days and warmer weather. The ...