Features: Quick Magnetic Connection : Features strong builts in magnets for instantly attachment to metal surfaces, ensuring secure placement during electrical testing without welding required. Wide Compatibility : Designed with 4mm banana plugs to fit most multimeters and measuring instruments, offering broad application across various devices. Enhanced Safety & Insulation : Provides excellent insulation to prevent accidental short circuits or electric shocks, ensuring safe operate in all testing scenarios. Durability & Portable Build : Made from quality for long lasting durability and lightweight design, making it easy to carry and store for on the go use. Stable Signals Transmission : Ensures reliability current and signals transfer with minimal interferences, delivering precisely measurement for professional electrical work. Specifications: Component: Plastic Size:Approx.5X3cm/1.96X1.18In Interfaces Diameter:Approx.4Mm/0.16In 3Option Color; Features:Quick magnetic connection,resistant to wear and rust ,Stable transmission, Flexible application: It can be widely used in electrical testing, maintenance, laboratories and other scenarios to adapt to the needs of different working environments. Package Includes: 1pc Magnetic Probe note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.