Gebildet Plastic Reed Switches Normally Closed Magnetic Induction Switch (3 mm x 14 mm) with 20 Small Round Multi-Purpose Magnets : Amazon.de: Business, Industry & Science
ABB Stotz Magnet-Reedkontakt Set, 10 x 10 x 35 mm, MRS/W, weiß, 1479090 : Amazon.de: Küche, Haushalt & Wohnen