The KW4-401CVA is a part of the Lucky Light series of automotive system and control products. It is a compact, robust and cost-effective integrated system controller that can be programmed to perform multiple functions such as timing, switching, monitoring, and communication. It is designed for controlling motion systems such as those used in cooling fans and air conditioning systems, and is capable of monitoring temperature, pressure, and flow. The controller features an integrated LCD display and 4 digital input/output channels, making it easy to use.