Free tools for security installers
Free Sentinary checklists and tools for people who install and run security systems, ready to download or complete in a few minutes.
Practical material built on the same official documents we use for our articles.
Check-up: is your CCTV system compliant?
Eight questions, three minutes. At the end you see what is still open on your system and what to do about each point under your country’s rules.
CCTV sign generator
Create a CCTV sign for the UK, Italy or Spain with the controller details and the information regulators ask for, then print it or save it as a PDF. Free.
CCTV storage calculator
How many terabytes you need to record your cameras: enter the number of cameras, bitrate, hours and retention days. Free, no sign-up.
CCTV pixels per metre calculator (DORI)
Pixels per metre a CCTV camera gives at a set distance, which DORI and IEC 62676-4:2025 levels it meets, and the maximum distance for each. Free.
Security product comparator
Compare cameras, alarm panels, motion detectors and video recorders from the main brands on their official datasheets, with a link to check every figure.
Burglary statistics: official figures by area
How many home burglaries are reported in each province, region and police force area: official figures from ONS, ISTAT and Spain’s Interior Ministry, with the rate per head.