Introduction

When applying one’s foot to the brake pedal, it is taken for granted that the braking mechanism will begin to slow or stop the vehicle.  A hermetically sealed reed switch plays a key reliability role by monitoring that the brake fluid level is maintained at its proper level, preventing a loss of the vehicle's braking system.

MEDER's approach uses the most reliably sensor technology to ensure high quality operation over a long life, in the presence of high temperature and dirty environments, normally seen under the hood of an automobile...

Full application writeup: 

Brake Fluid Level Sensor

Brake Float Level Sensor