network switch power over ethernet
PoE Network Switch Guide for CCTV 2026
A PoE network switch does two jobs at once: it moves data between your cameras and NVR, and it feeds each connected device DC power over the same Ethernet…
11 min read
CCTV Master
Blog
Buying guides, side-by-side comparisons and straight answers from the CCTV Master team.
intruder alarm system
Intruder Alarm System Grades UK: 1–4 Explained + Costs
An intruder alarm system's "grade" — Grade 1 to Grade 4 under EN 50131 — states how determined a burglar it's built to resist, and it's the figure insurers…
13 min read
proximity card reader
Proximity Card Readers for CCTV 2026
A proximity card reader unlocks a door by reading a credential held near its sensor and sending an ID signal to a controller — but which frequency it uses…
12 min read
business cctv installer
How to Hire a Business CCTV Installer: Complete 2026 Guide
Engaging a business CCTV installer follows a predictable sequence — enquiry, site survey, quote, install, handover, compliance paperwork — and knowing that…
11 min read
door entry system for flats
Door Entry Systems for Flats: Install & Costs
A door entry system for flats lets a visitor at a communal outdoor panel call a specific flat, so the resident can see or hear who's there and release the door…
11 min read
4 camera cctv kit
4-Camera CCTV Kit: Real Coverage Limits
A four-camera kit is, as a rule of thumb, enough to cover the front door, back door, driveway and one side return of a typical UK semi — on a detached house or…
12 min read
biometric access control
Biometric Access Control UK 2026: Costs & GDPR Compliance
Biometric access control identifies people by a physical trait — face, fingerprint or iris — matching a live scan against a stored template to release a door…
12 min read
cctv for retail shop
Best CCTV for Retail Shops 2026: Till & Coverage
A retail shop needs cameras at four non-negotiable points — entrances/exits, tills, high-theft shelving and stockroom/delivery access — with everything else…
10 min read
door access control system
Door Access Control Systems UK: 2026 Guide
A door access control system boils down to four parts working as one loop: a reader that captures your credential, a controller that checks it against a stored…
14 min read
access control system
Access Control Systems: Specify With CCTV 2026
An access control system is the combination of a controller, a credential and a reader that together decide who may pass a given door and when.
13 min read
poe cctv system
PoE CCTV System: Camera, Switch & NVR
A PoE CCTV system is one where every IP camera draws both power and data from a single Ethernet cable run to a PoE switch or PoE NVR, eliminating the separate…
9 min read
best cctv system wireless
Best CCTV System Wireless: UK Guide 2026
There's no single "best" wireless CCTV system that suits every UK property — the honest answer depends on whether you actually have reliable WiFi coverage…
13 min read