Realtime fault detection and timing tracking: Detects faults as they occur, accurately tracks relay inertia, and records closure timing effectively to verify relay performance. Clear visibility: Greenred LED indicator provides ataglance status during testing for quick assessment. Broad 12V compatibility and relay support: Functions reliably with 12V systems and offers extensive relay compatibility, delivering consistent results across multiple relay models. Durable and safe: Built from toughness materials for longlasting use, with odorless safety, and a shatterresistant design to enhance reliability. Portable and spacesaving: Engineered for easy carrying with a compact build that simplifies handling during testing tasks. Use scenarios Automotive electrical testing: Assess 12V automotive relays in vehicle circuits to verify fault conditions, inertia behavior, and closure timing during field diagnostics. Industrial control panels: Test relays in control systems for machines and equipment, ensuring reliable operation across various relay models in a production environment. Field service and workshop testing: Carry and use onsite or in the lab to quickly evaluate multiple relay models, saving time and improving test efficiency.