Blood is also called as fluid connective tissue because it posses all the properties of connective tissue. 1  It connects various body parts with each other.  Forms packing around various body organs so called as packing tissue.
This signal monitor switch is used to upgrade any 3000 or 8000 series exit device. It gets mounted in the push-bar of the exit device on the hinge side. It can be used to operate signal lights, horns, monitors or other devices. This switch can be set to be normally open or normally closed.
A thermal cutoff is an electrical safety device that interrupts electric current when heated to a specific temperature. These devices may be for one-time use or may be reset manually or automatically. thermal switch (sometimes thermal reset or thermal cutout (TCO)) is a device which normally opens at a high temperature (often with a faint plink sound) and re-closes when the temperature drops.