Security and Automation

Exclude a Z-Wave device the right way: the exclusion procedure, general exclusion for used devices, why a factory reset leaves ghost nodes, and how…

When does alarm wiring need a shield? Keypad and data buses, long runs and noisy spaces, the drain wire grounded at the panel end…

Three ways to view an NVR remotely compared: the maker’s P2P service, a VPN and port forwarding, with the case against open ports and…

Place PIR motion detectors where they catch intruders and ignore everything else: across the walking path, at the listed height, clear of vents, sunlit…

Fixed or varifocal? Work out field of view and pixels per metre from focal length and sensor size, see when a fixed lens is…

Wire an electric strike the right way: size the power supply, choose the relay contact for fail-secure or fail-safe, fit the suppression diode, check…

Z-Wave vs WiFi smart devices compared for installers: sub-GHz mesh versus the home router, battery life, range through walls, router load, local control, certification…

Plan motorized shade automation: clock and sunrise schedules, sun tracking by window, scenes with lights and temperature, sensor thresholds, hub and security panel control,…

Why outdoor WiFi cameras drop offline, how to measure signal at the mount, and the fixes in order of effort: moving an access point,…

When an alarm wire splice is acceptable and when to home run, which connectors suit 22 AWG conductors, gel filled splices for damp spaces,…

How a 3-way circuit works, how travelers, line and load are identified, and the two common smart approaches: a matching companion switch or a…

Mount the cable box behind the TV or in a cabinet, keep its vents clear, control it with HDMI-CEC, an IR emitter, RF or…