Free ELV Engineering Tools

Calculators and designers for CCTV, networks and fire alarm systems, built by a practising ELV engineer. Free, no sign-up, works in your browser.

CCTV design tools

HDD size, RAID and bitrate for mixed camera groups.

Lens, pixel density and IEC 62676-4 / DORI levels.

Detection, recognition and identification ranges.

Place cameras on your drawing with live coverage.

Plan outdoor cameras on a satellite map.

Single-line diagrams with ping and link simulation.

Detectors, sounders, loops, battery and BOQ.

Bilingual evacuation plans with signs and routes.

NEW · ANDROID APP

Read every CCTV, network and fire guide on site, search articles, download datasheets and share with your team. Works on Android 7.0 and newer.

First install: open the downloaded file and allow “Install unknown apps” for your browser when Android asks.

Scan on your phone