Sensor and Relay Magnets
Magnets ideal for tripping and triggering sensors
Our sensor and relay magnets have been hand-picked and are perfect for activating a reed switch, hall effect sensor and much more.
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How Search Works
Just type normally and use spaces between keywords or numbers and don't use uncommon symbols Search automatically recognizes product numbers, dimensions, pull force, surface field (gauss), magnet grade, coating, color, magnetization direction, hole size, shape, type, application, and more. You can combine multiple search terms in a single search to quickly find the best matching products.
Use filters to narrow results. Too many keyword matches might have no results (ex: red rubber n52, we carry these separately, but not together as a combo in 1 magnet). If you cannot find a magnet, please try a different combo or contact us for assistance.
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1. Product Numbers
Only supports K&J Magnetics part numbers.
- Exact product numbers are checked first.
- Related sizes and product families may also be shown.
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Examples:
D42D42-N52BX084MMA- pn base (show all related)MMS-A- pn family (show all -A)BX0- pn wild (show all starting with BX0)
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2. Dimensions
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Supports imperial and metric dimensions, including:
- Fractions (
1/4,1 1/2) -
Decimals (
.375,0.25,1.75) -
Inches (
1/2 in,1.5"",2 inches) - Millimeters (
8mm,2.5 mm) - Centimeters (
2cm,3.5cm) -
Multiple dimensions (
1/2 x 1/8,8x3mm,1 x 1 x 1/4)
- Fractions (
- If an exact size isn't available, nearby sizes or min/max are also shown. No UOM will default to imperial inches.
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Supports imperial and metric dimensions, including:
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3. Pull Force & Surface Field
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Pull force supports:
- Pounds (
20.5 lb,90 lbs) - Ounces (
8 oz) - Kilograms (
5 kg)
- Pounds (
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Surface field supports:
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Gauss (
819 gauss,1000g,2500 gs) - Tesla (
0.8 T,1 tesla)
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Gauss (
- If an exact value isn't available, nearby values or min/max are also shown.
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Pull force supports:
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4. Keywords & Product Features
- Search by shape, type, application, coating, color, grade, magnetization direction, hole size, and more.
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Examples:
rubber disc magnetring magnet screw holeround red n52 magnetscountersunk M5 holefishing magnet
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5. Combine Everything
- You can combine multiple search terms in one search.
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Examples:
1/2 disc N5220 lb block magnet 1x1in n52sewing magnets pair large 1"" N38, NI1"" ring pairs with hole for screw
- Results are ranked by how well they match your entire search.
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