Fangrui Product Details Compatibility With A Wide Range Of Models. It Is The Tool For Technicians Who Need A Reliable Device For Elevator Diagnostics And Adjustments. Advanced Features: Equipped With A Dual-line Lcd Display For Clear Visibility, This Tool Supports A Wide Range Of Functions Including Parameter Reading And Setting, Fault Code Identification, And Monitoring Input/output Signals. Its User-friendly Interface And Clear Physical Buttons Make Operation Simple And Efficient. Unlimited Use And Full Functionality: The Blue Test Tool (t/t) Version Offers Unlimited Use, Allowing For Unlimited Continuous Runs Its Ability To Check And Adjust Gecb Data Makes It An Indispensable Tool For Elevator Maintenance And Troubleshooting. Designed For Professional Use: This Elevator Test Equipment Is An Essential Tool For Elevator Technicians And Maintenance Professionals. It Provides A Reliable And Efficient Way To Diagnose And Adjust Elevator Systems, Ensuring Optimal Performance And Safety. Colour: As Shown Material: Plastic