Electro Master puts 11 electrical calculators, an offline reference library, and PDF project reports in one app — no more juggling a calculator, notebook, and printed tables on site. Everything works fully offline, and every calculator shows the formula behind the result so you can trust the numbers. Free core tools; Pro unlocks short-circuit, motor starters, grounding & more. Available in 5 languages (EN, ES, BG, RO, SR). Built with electricians, for electricians.
