Non Contact Pen Type Digital Multimeter,

Functionality: It's designed for testing AC voltage and can typically identify live/null wires. Safety: It allows for non-contact detection of voltage, enhancing safety during electrical troubleshooting and repairs. Features: Many models include sound and light alarms, an LCD screen, LED illumination, and automatic shutdown for convenience and battery saving. Applications: These devices are useful for electricians, DIY enthusiasts, and anyone needing to verify the presence of voltage in electrical systems.