New: twelve tools for cabling, audio, fire alarm, access control and notification work, and Guides, in the new More tab. • Fiber Loss Budget — TIA-568 limits in feet, kilofeet, miles or km, with an optics margin check. • Coax Loss — RG-59, RG-6 and RG-11 from 5 MHz to 3 GHz, with splitters and signal levels. • Speaker Line 70/100 V — tap totals, amp size and wire loss in AWG or mm². • Low-Z Audio 4–16 Ω — speaker load in series, parallel or series-parallel, and cable loss. • Fire Alarm Battery & NAC — the standby battery to install, and the voltage at the last appliance. • Access Control Power — the supply's peak load, the battery for a UL 294 standby level, and the voltage at the lock. • Mass Notification — battery to NFPA 72, DoD or European defaults, amplifier and circuit spare, speaker wire loss and strobes. • Giant Voice — outdoor array coverage, the 120 dBA distance and the site battery. • Intercom & Two-Way — voltage at each station, data-pair runs and the battery. • School PA — amplifier and wire for each zone, and call-in switch runs. • Speaker Coverage — ceiling speaker spacing, count and loudness. • Survivability — the pathway survivability level for the construction rating and evacuation strategy. • Guides — survivability and pathway classes, cable types, compliance notes. • Quicker number entry: Done finishes in one tap on iPad, and a tap outside the field finishes on any device. • Free to download: Storage is always free, and every tool is free for 14 days. Then unlock CCTV Calc Pro once. • New Night Vision theme. Settings now lives in More.