This is the unlock key to transform the FREE version of "Electrical Calculations" to the PRO version.
This application does not work on its own. Before you buy this app, you will need to install the main app, "Electrical Calculations."

Instructions:
Step 1: Install the "Electrical Calculations FREE" app.
Step 2: Now, install this Pro Key to enable all the functions. (Kindly do not remove the free version of the app).

Step 1. Download Cálculos Eléctricos clave PRO Mod (Paid for free Free purchase) APK file on HappyMod.com.
Step 2. Once it's downloaded, open Downloads, tap on the APK file, and tap Yes when prompted.
Step 3.Cálculos Eléctricos clave PRO Mod (Paid for free Free purchase) APK will begin installing on your device. Simple.

Step 1. Download HappyMod APK file on HappyMod.com.
Step 2. Once it's downloaded, open Downloads, tap on the APK file, and tap Yes when prompted.
Step 3.Search Cálculos Eléctricos clave PRO Mod, click Download.
Step 4: You can download 100% working mods on HappyMod with one click.