IMPORTANT: This kit works only with 5070 models. 5065 uses a 5063 chip available through the 2014 NEC. There is no chip to upgrade the older 5060 models past the 2011 NEC.
2020 NEC upgrade chip for Calculated Industries ElectriCalc Pro. Simply insert this chip into the special door on the back of the product, and your calculator is instantly updated to the latest 2020 NEC. Your calculator will support NEC Code years 1996 through and including 2020 and will continue to be fully updateable to future code changes.