The MEDER ELECTRONIC MK04-1B90C-500W is a high-quality reed sensor designed for reliable performance in a variety of applications. This sensor features a 1 Form B configuration, making it a Single Pole, Single Throw Normally Closed switch. It is equipped with a screw mounting system for secure installation and offers wire termination at 1520 gauge for easy connectivity. Trust the MK04-1B90C-500W reed sensor for dependable and accurate sensing in your electronic projects.