An economical, non-mercury tilt switch which operates when tilted approximately 10° from the horizontal. * Contact is made by gold-plated ball-bearings which roll onto the contact * Single gold-plated pin, with a lead attached to the case https://elecena.pl/product/27166761/trusens-bt411-2-tilt-switch-non-mercury-2-leads 2024-11-07 https://elecena.pl/product/27166761/trusens-bt411-2-tilt-switch-non-mercury-2-leads 2026-07-22