FREEIP vs Voltbox

Via 3G, 4G or WIFI network, you can controll the monitoring device and check the real-time stream. 1. Input the serial number to your Freeip account by scanning the QR picture or enterring the serial number manually. 2. If the device is online, you can check the real-time stream.

Voltbox: PV Installer Toolkit is a professional calculator toolkit for solar/PV installers, built around NEC Articles 690 and 705. Fast, accurate, and yours to own — pay once, keep it forever. 12 CALCULATORS Array & String Design (free) • String Sizing — max modules per string, temperature-corrected (NEC 690.7) • PV Circuit Sizing — conductor & OCPD sizing for source circuits (NEC 690.8/690.9) Interconnection & Safety • 120% Rule — backfeed breaker vs. busbar interconnection check (NEC 705.12) • Rapid Shutdown — array boundary & voltage/time limits reference (NEC 690.12) • DC Arc-Fault Protection — whether 690.11 AFCI protection applies to your install Circuit Installation • Voltage Drop — DC array-to-inverter run (NEC Ch. 9 Table 8) • Conduit Fill — DC source/output conductors in conduit (NEC Ch. 9 Table 1) • Grounding & Bonding — GEC (690.47) and EGC (690.43/250.122) sizing • AC Output Sizing — inverter output circuit conductor & OCPD (NEC 690.8) • Rooftop Temp Adder — ambient temperature correction for rooftop conduit (NEC 310.15(B)(3)(c)) Storage & Estimates • Battery Sizing — ESS backup capacity from critical load & duration • Production Estimate — quick annual output ballpark from peak sun hours WHY VOLTBOX • One-time purchase for Pro — never a subscription, never a recurring fee • Save and organize calculations by project • Built for the job site: fast, no clutter, no login screens, works with no signal • No account required — open the app and start calculating String Sizing and PV Circuit Sizing are free. Unlock Pro once to get every other calculator. Voltbox is a reference tool based on the NEC. Always verify results against the current code edition adopted in your area and confirm compliance with a licensed electrician or installer before performing any installation.