Welcome to ETC Educational Technology Connection (HK) Ltd!
Each package contains six (6) magnet-on reed switches.
Dimension of each magnet: 5/8" wide x 1/8" deep x 1/8" high
When a magnet-on reed switch is added to your circuit, electricity will not flow unless a magnet is placed nearby. This allows you to add another fun interactive element to your circuits!
Magnets are not included and will need to be purchased separately.
To learn more about how reed switches work and how to use them in your products see our reed switch info page.