EE660 employs E+E air flow sensors manufactured in thin film technology, which stands for excellent accuracy and long-term stability down to 0.15 m/s (30 ft/min). The device is available with current and voltage output or with RS485 interface an Modbus RTU or BACnet MS/TP interface.

EE660 is user configurable and adjustable with jumpers on the electronics board or with the EE-PCS Product Configuration Software.