• More than 240'000 orders per year
  • Over 46 million magnets in stock
The product was added to your shopping cart.
Go to shopping cart

Flux detector small

foil to indicate magnetic fields, approx. 75 x 75 mm

Item number M-04
Unit of Sale 1 piece
Price and rebate
1 pc. 7.60 CHF ea.
from 3 pcs. 6.75 CHF ea.
from 10 pcs. 6.00 CHF ea.
from 20 pcs. 5.65 CHF ea.
from 40 pcs. 5.30 CHF ea.
incl. VAT plus shipping

7.60 CHF

incl. VAT plus shipping

promptly deliverable

Available: 46 pieces

Delivery time: 1-2 business days


  • Orders placed by 12:00 will be shipped today!


This Flux Detector makes magnetic fields visible. It's accomplished by a foil filled with nickel particles in a gelatinous suspension. The Flux Detector turns dark in colour when the magnetic field is perpendicular to the foil (for example, near the poles) and turns lighter when the magnetic field runs parallel to the foil.
Other sizes upon request.

Technical data

Article ID M-04
EAN 7640155433372
Width 75 mm
Height 75 mm
Weight 1 g


A common fridge magnet made of ferrite.
These magnets are often magnetised in stripes in order to increase the holding force in direct contact with metal. The magnetisation can be nicely seen here with the flux detector.
The detector maintains the last pattern until a new magnetic field is shown. Therefore, the flux detector won't be all green anymore once you started using it, but you'll see dark shadows.

Recommended accessories for this product

100 x 15 mm, school magnet made of AlNiCo5, red-green coated
1 pc. 13.95 CHF ea.*
from 3 pcs. 12.50 CHF ea.*
from 10 pcs. 11.20 CHF ea.*
from 20 pcs. 10.55 CHF ea.*
from 40 pcs. 10.00 CHF ea.*
Ask for a rebate from 200 pcs.
Available: 966 pcs.
150 x 12 mm, school magnet made of AlNiCo5, red-green coated
1 pc. 17.00 CHF ea.*
from 3 pcs. 15.20 CHF ea.*
from 10 pcs. 13.65 CHF ea.*
from 20 pcs. 12.85 CHF ea.*
from 40 pcs. 12.20 CHF ea.*
Ask for a rebate from 160 pcs.
Available: 792 pcs.
60 x 15 mm, school magnet made of AlNiCo5, red-green coated
1 pc. 7.55 CHF ea.*
from 3 pcs. 6.70 CHF ea.*
from 10 pcs. 5.95 CHF ea.*
from 20 pcs. 5.55 CHF ea.*
from 40 pcs. 5.25 CHF ea.*
Ask for a rebate from 500 pcs.
Available: 3'742 pcs.
set with 114 small neodymium magnets
With 5 types of mini magnets, 3 of them gold-plated
1 set 19.50 CHF/set*
from 3 sets 17.65 CHF/set*
from 10 sets 16.00 CHF/set*
from 20 sets 15.15 CHF/set*
from 40 sets 14.50 CHF/set*
Ask for a rebate from 300 sets
Available: 527 sets