A flow switch is an essential component of many fluid systems, including HVAC, plumbing, and fire protection systems. It is designed to detect the flow of fluid in a pipe or conduit and trigger an electrical signal to activate or deactivate a system or alarm.

Recessed sprinklers are a type of fire sprinkler system that is designed to be installed into a ceiling or wall cavity, resulting in a flush-mounted appearance. These sprinklers are commonly used in commercial and residential buildings to provide fire protection by automatically spraying water onto a fire in its early stages, helping to contain the fire and prevent it from spreading.