The The Nex Flow™ is an easy-to-use PLC Flow Control System or PLCFC specifically designed for compressed air. It is high-end because it uses the most advance technology among all offered nowadays. This unit is used as a uni-corporated model or can interface with another automated system. Its system depends on PLC instead of a simple timer.
It is in combination with a photo electric sensor so that the air will be turned on whenever the target passes the sensor and be turned of whenever the target goes away from the sensor, this process it set to have a delay of 2s whenever the target leaves, but when it passes the turning on is instant. A timer can be supplied if it is preffered for turning off the sensor.