The 59070 magnetic reed switch is a small barrel sensor with an M8 x 1.25 thread activated by a permanent magnet. Switching distance 12-20mm with SPST normally open or closed contacts. The sensor draws no current in the non-activated state, making it ideal for battery power applications. The sensor is also well suited to high moisture and contaminated environments. The reed contacts allow for millions of operations and will work through materials such as wood, ...