did the job
i bought them to block off the airways on my "compliant" wood burner so i could shut it down. it worked with three magnets left over.
Product code: 12041
This ferrite block magnet has a 50mm length, a 19mm width and a height of 4.9mm. This ferrite magnet has a magnetic flux reading of 1988 Gauss and a pull force of approx 500 grams. It is identified by the AMF magnet part number 12041.
Smaller ferrite block magnets like this item are lightweight, inexpensive and extremely resistant to corrosive forces. They are able to withstand harsh outdoor environments and are often used in sensors and alarms but are also popular for use in handicrafts and hobbies. All Ferrite magnets have excellent heat and corrosion resistance but are relatively low in pull force and mechanical strength, which makes them susceptible to cracking and breakage.
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Ferrite Block Magnet - 50mm x 19mm x 4.9mm (12041)
This ferrite block magnet has a 50mm length, a 19mm width and a height of 4.9mm. This ferrite magnet has a magnetic flux reading of 1988 Gauss and a pull force of approx 500 grams. It is identified by the AMF magnet part number 12041.
Smaller ferrite block magnets like this item are lightweight, inexpensive and extremely resistant to corrosive forces. They are able to withstand harsh outdoor environments and are often used in sensors and alarms but are also popular for use in handicrafts and hobbies. All Ferrite magnets have excellent heat and corrosion resistance but are relatively low in pull force and mechanical strength, which makes them susceptible to cracking and breakage.
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Ferrite Block Magnet - 50mm x 19mm x 4.9mm (12041)