Butler Technik Diag Pro is the advanced version of Butler Technik Diag for compatible WTT heating systems equipped with a supported WTTC controller.

The Pro version includes all Standard features and adds extended diagnostic and programming tools for professional use, service work, and deeper system analysis.

Included Standard features:
- Connect to compatible WTTC devices over Bluetooth Low Energy
- Start and stop the heater from the mobile device
- Monitor main operating parameters such as temperature, voltage, status, set time, and current work time
- Configure water pump mode and heater schedules
- View active error codes with descriptions
- Clear stored heater errors when supported by the connected controller
- View communication logs for diagnostics and support
- Available in English, Russian, and Turkish

Pro features:
- Dedicated Diagnostic tab with real-time heater parameters
- Live monitoring of supply voltage, temperature, heating energy, combustion air fan speed, fuel pump frequency, glow plug output, flame detector value, and circulating pump output
- Compact visual diagnostic bars for quick parameter interpretation
- Component test controls for supported heater components
- Dedicated Programming tab for PH activation workflow and operating statistics
- Access to special controller parameters such as serial number, WBUS version, and fuel type

Butler Technik Diag Pro is intended for users, installers, and service specialists who need advanced diagnostic visibility and supported programming functions in addition to everyday heater control.

Important:
This application requires a compatible WTTC Bluetooth controller and a supported Webasto Thermo Top heater installation. Pro functions depend on the connected controller firmware, heater configuration, and supported diagnostic/programming capabilities.