Relays & Sensors Magnets

Magnetic Reed Switches Magnetic Reed Sensors Magnetic Hall Effect Sensors Magnetic Reed Relays

Relays & Sensors Magnets can be used for magnetic sensors includes reed switches, reed sensors, Hall Effect sensors, and reed relays, as well as bare and packaged magnetic actuators.

The reed switch is an electrical switch operated by an applied magnetic field. In its simplest and most common form, it consists of a pair of ferromagnetic flexible metal reeds contacts in a hermetically sealed glass envelope. The contacts are usually normally open, closing when a magnetic field is present, or they may be normally closed and open when a magnetic field is applied. The switch may be actuated by an electromagnetic coil, making a reed relay, or by bringing a permanent magnet near the switch. When the magnetic field is removed, the reeds in the reed switch return to their original position.

An example of a reed switch application is to detect the opening of a door, when used as a proximity switch for a security alarm.

Reed sensors when paired with permanent magnets present an ideal method of sensing and detecting movement, proximity, metal detection, and liquid level and flow measurement. Reed sensors open and close their reed switch contacts in the presence of a magnetic field. Typically a permanent magnet is the moving member in the magnetic system. This can be a piston, a float, a rotating disk, and much more.

A Hall effect sensor is a device that is used to measure the magnitude of a magnetic field. Its output voltage is directly proportional to the magnetic field strength through it. Hall effect sensors are used for proximity sensing, positioning, speed detection, and current sensing applications.

Item No. Product Name Dimensions Price($)
ALB-D42SH Neodymium Disc Magnets 1/4" dia. x 1/8" thick Inquiry
ALB-D44 Neodymium Disc Magnets 1/4" dia. x 1/4" thick Inquiry
ALB-D32 Neodymium Disc Magnets 3/16" dia. x 1/8" thick Inquiry
ALB-D43 Neodymium Disc Magnets 1/4" dia. x 3/16" thick Inquiry
ALB-D42 Neodymium Disc Magnets 1/4" dia. x 1/8" thick Inquiry
ALB-D22 Neodymium Disc Magnets 1/8" dia. x 1/8" thick Inquiry
ALB-D32SH Neodymium Disc Magnets 3/16" dia. x 1/8" thick Inquiry
ALB-D33 Neodymium Disc Magnets 3/16" dia. x 3/16" thick Inquiry
ALB-D33SH Neodymium Disc Magnets 3/16" dia. x 3/16" thick Inquiry
ALB-D43-N52 Neodymium Disc Magnets 1/4" dia. x 3/16" thick Inquiry
ALB-D55 Neodymium Disc Magnets 5/16" dia. x 5/16" thick Inquiry
ALB-D55-N52 Neodymium Disc Magnets 5/16" dia. x 5/16" thick Inquiry
ALB-D66 Neodymium Disc Magnets 3/8" dia. x 3/8" thick Inquiry
ALB-D88 Neodymium Disc Magnets 1/2" dia. x 1/2" thick Inquiry
ALB-D23 Neodymium Cylinder Magnets 1/8" dia. x 3/16" thick Inquiry
ALB-D24 Neodymium Cylinder Magnets 1/8" dia. x 1/4" thick Inquiry
ALB-D34 Neodymium Cylinder Magnets 3/16" dia. x 1/4" thick Inquiry
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