qd20 watch tester For professional shops, garages, and training courses, the qd20 provides reliable battery testing and movement evaluations, helping watches stay in working condition. Advanced measurement technology precisely evaluates battery power and movement performance states, delivering accurate results with portable and easytouse operation. Designed for professional watchmakers, watch enthusiasts, and electronics technicians, it delivers precise diagnostics essential for maintaining and repairing timepieces. Clear display and fast response provide realtime results, improving workflow efficiency. Builtin overload protection enhances safety and reliability in every test. Key benefits Function: tests battery power and movement performance states to diagnose charging, power, and movement health. Compatibility: suitable for professional testing contexts involving watch movements and associated batteries. Portability: portable design for bench use, onsite service, or training environments. Performance: accuracy, rapid results, realtime output for efficient diagnostics. Safety and durability: builtin overload protection and a design fit for everyday professional use. 23 practical use scenarios In a : conduct quick battery and movement health checks before servicing to determine the approach and reduce unnecessary disassembly. In a training course: demonstrate testing procedures and diagnostic workflows to watchmakers and electronics technicians, reinforcing practices. In field or home workshops: perform fast, reliable diagnostics to verify power and movement conditions when time is critical or when equipment access is limited. This description maintains the original qd20 model and its core functions while presenting clear, customerfocused benefits and practical use cases in plain, readable language.