The Electrician's Bible
Everything you need on site: REBT, calculators, Voltio AI, electrical wholesalers directory, fault guides, quotes and takeoffs. In your pocket.
Available on iPhone (App Store) and Android (Google Play)
Why Voltio Pro?
REBT and ITC-BT in your pocket
Check regulations on site without the internet. Chapters and ITC-BT 01 to 52, quick search, and content updated from our panel without app updates.
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Regulation-based calculators
Conductor section, voltage drop, conduit diameter, circuit breaker, short circuit, load forecast, starting capacitor. All REBT-based and usable offline.
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Voltio: your technical assistant
Ask in writing, by voice, or send a photo of the board or installation. Voltio uses only the app content and regulations; it doesn't make things up. It can suggest opening a calculator with data already filled in.
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Step-by-step fault diagnosis
Guided flows for what you see most: RCD trips (immediate, intermittent, at night, moisture), water heater, hob, washing machine, mixed neutrals, meter ICP. In trade language. (Maestro and Maestro Pro plans.)
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Quotes and takeoffs
Point-based or time-and-materials quotes with PDF. Room-by-room takeoff: count mechanisms by voice («three sockets, two two-way switches») or text. (Maestro and Maestro Pro plans.)
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Electrical wholesaler directory
Over 900 wholesalers across Spain. Search by province and city, open each in Maps, check phone and plan type (Free, Featured, Recommended, Premium). Data updates when you sync and is then available offline. Included in the Chispa (free) plan.
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Electricians' community
Ask for help and share solutions with other electricians. Post your case, attach photos and get replies from other professionals. Includes achievements and reputation. Available from the Oficial plan.
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Download
Download Voltio Pro free from the App Store or Google Play. No card required for the Chispa plan.
Sync and set up
Open the app, sync (regulations, faults, stores) and choose your level (beginner or professional). You then have calculators, REBT and Voltio ready to use.
Use it on site
Check regulations, calculate sections and resolve faults from your phone. Anything already downloaded works offline.
Rate us
If you already use Voltio Pro or like what you see, leave your rating. On the site only the first 3 letters of your email are shown for privacy.
Electricians' ratings
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Voltio Pro vs other options
Each option has its place. Voltio Pro brings together regulations, calculation, diagnosis, wholesaler directory, quotes and community in one tool, designed by electricians for day-to-day work on site in Spain.
Ready to carry it in your pocket
Download Voltio Pro on the App Store (iPhone) or Google Play (Android).