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Sefram is a specialist manufacturer of electronic test and measurement equipment for industrial, telecommunications, energy and maintenance applications. Its portfolio includes oscilloscopes, multimeters, power analysers, data loggers, insulation testers and network test instruments designed to deliver reliable performance in demanding environments. Engineers and technicians worldwide rely on Sefram products for accurate measurements and everyday troubleshooting.
Compact, intuitive, and built to last, the SEFRAM21 and SEFRAM22 are trusted companions for demanding electricians.
Developed for electricians, maintenance technicians, and installers, these testers enable quick verification of voltage presence on outlets, terminals, cables, circuit breakers, and distribution panels—without direct contact.
Both models feature clear visual indication, an audible buzzer, and an integrated LED flashlight, ensuring efficient operation even in low-light conditions.
Dual sensitivity allows precise localization of live conductors from 12 V up to 1,000 V AC. Compliant with CAT IV 1,000 V safety standards, the SEFRAM21 and SEFRAM22 provide a high level of protection for professionals performing installation and maintenance tasks.
The SEFRAM22 is designed for industrial environments and goes a step further with phase sequence indication, allowing quick and easy measurement by scanning phases one after another. This enables rapid verification of three-phase motor wiring and industrial power networks. With an IP67 protection rating, it is particularly suited for demanding production and maintenance environments.
1-year warranty
Supplies in blister pack with 2 AAA batteries
