HSI Spot On Leverless Limit-Switches are designed to handle the most extreme operating environments. The four different Spot On models can sense farther, faster and last longer than the competition.
*SPOT ON WIRE COLOR DESIGNATIONS:
Black Wire = Common / Red Wire = Normally Closed / Blue Wire = Normally Open / Green Wire = Ground (steel housing only)
From 'Making Sense' Blog
Your Toy Choo Choo Train Has a Reed Switch
Toy trains are for kids of all ages! While real trains go back to the advent of the Industrial Revolution in the early 1800s, toy trains emerged later. Wooden and metal toys resembling trains were first made in Europe in the 1860s. By 1901, Lionel made its first electric train for use in store display … Continued