Wattmaster OE391-12 Handheld Modular Service Tool, System Operator Interface [Refurbished]

Housed in an attractive black plastic enclosure. Display area is covered with a clear plastic. A 27-key membrane keypad for data selection and entry.. . . The OE391-12 Modular Service Tool is a system operator interface that provides a direct link to enable the system operator to view the status, confi gure, and adjust the setpoints of the VCCX2, VCC-X, VCM-X, VCM-X E-BUS, SA E-BUS, RNE, VCB-X, VCM, VAV/CAV, MUA II or VAV/Zone Controller on the control system communications loop.. Wattmaster. Wattmaster. OE391-12.