Technical Specifications Parameter Specification Model FV-CT04-PU-8D Type Digital Valve Controller Accessory Package Compatibility Fisher Fieldvue DVC6000/DVC2000 Series Digital Valve Controllers Communication Interface HART Protocol Max Device Connections 8 devices simultaneously Power Supply Built-in rechargeable battery or external power adapter Display Backlit LCD for configuration and diagnostics Enclosure Rating IP54 (Dust and water splash resistant) Operating Temperature 14°F to 122°F (-10°C to 50°C) Communication Ports HART communication terminals, USB (for data transfer)