The eZV-440 VAV controller has a number of unique features. It merges the low cost and convenience of a configurable controller with the power and flexibility of a programmable controller. Each Input and Output is universal, allowing a diverse selection to cover practically any VAV controller needs. Possibly most interesting about this controller though, at least from our side in regard to cost-impact, is that the devices can be programmed with Near-Field-Communication (NFC) before they are powered up or even taken out of their shipping packaging. The eZV-440 comes with either a Belimo or Siemens actuator, and a differential pressure sensor built in, while the eZFC, also pictured above, is designed for fan coil control.