Wiha 25505 Non-contact Voltage Tester Cat Iv 1000V

Product Description

The WIHA 25505 is a non-contact voltage tester designed to detect the presence of AC voltage without direct contact with live conductors. Using a light indicator display, it signals voltage presence quickly and clearly, reducing exposure risk during electrical diagnostics. Powered by a standard AAA battery, the unit is ready for field use without specialized power sources. Rated to CAT IV 1000V, it meets the highest overvoltage category classification, making it appropriate for service entrance, utility, and industrial electrical environments. Licensed electricians and HVAC technicians use this type of tester for routine circuit verification and safety checks before servicing panels, outlets, and control wiring.

The WIHA 25505 suits residential, commercial, and light industrial electrical work. It is commonly used to verify circuits are de-energized before opening panels, replacing outlets, or servicing equipment. The non-contact detection method allows techs to check live conductors, cables, and outlets through insulation, reducing the need to expose bare terminals. Its compact form factor makes it practical for tool pouches and service kits. The CAT IV rating addresses transient overvoltage conditions found at utility service entrances and outdoor equipment feeds, expanding its usable range beyond the typical CAT II or CAT III testers found in residential kits.

Key Features

• Non-contact detection eliminates the need to touch live conductors during voltage checks
• CAT IV 1000V rating covers the highest overvoltage category, suitable for service entrance and utility applications
• Light indicator display provides a clear, immediate visual signal of voltage presence
• Powered by a standard AAA battery for easy field replacement
• Includes user manual for reference and compliance documentation

Compatibility

Designed as a general-purpose non-contact voltage tester suitable for use on standard AC circuits within its rated voltage range and CAT IV installation category.

Installation Notes

This tester is intended for use by qualified electricians and trained trade professionals familiar with electrical safety practices. Always verify the tester is functioning correctly on a known live source before relying on a no-voltage reading. Follow NFPA 70E arc flash and shock hazard protocols and wear appropriate PPE when working in or near energized panels. Do not use this tester as a substitute for a full lockout-tagout procedure.