Can I run home cameras without a subscription?

Local recording, and why it is the whole argument

When a camera records to the cloud, three things follow. You pay monthly, forever. Your footage sits on infrastructure you do not control, subject to terms that can change. And if the internet drops or the vendor has an outage, you have no recording at all - precisely when you might need one.

Local recording means an NVR or a machine in your home writing to your own disks. No monthly fee, footage that never leaves the property unless you choose to view it remotely, and recording that keeps working through an outage. Remote viewing still works, over a connection you control rather than a vendor's.

The practical requirement is a camera that speaks RTSP or ONVIF. Those are open standards, and a camera that supports them can be recorded by anything, now and in ten years. A camera that only talks to its own app is a rental.

Choosing cameras

• PoE over Wi-Fi, wherever a cable can be run. One cable for power and data, no battery to charge, no Wi-Fi congestion, and no dropout at the moment something happens.
• Resolution is not the point. A well-placed 4MP camera at face height beats an 8MP camera looking down from a soffit. Plan the angles first.
• Night performance is where cheap cameras fail. Infrared washes out faces; a camera with a decent sensor and a little ambient light gives you an image you can actually identify someone from.
• Skip the doorbell battle in a condo. Anything mounted outside your door is usually common property and needs MCST approval. An internal camera covering your own entryway plus a smart lock delivers the same outcome.

Sensors do the detecting

Video motion detection generates false alerts - headlights, rain, a cat, a moth on the lens. The reliable pattern is sensors for detection and cameras for verification.

• Contact sensors on the main door, windows and the bomb shelter or store room. Cheap, battery-powered, and unambiguous.
• Occupancy and motion sensors inside. mmWave presence sensors detect a stationary person, which conventional PIR cannot, and they are what makes "nobody is home" a fact rather than a guess.
• Vibration sensors on a gate or a grille.
• Water leak sensors under the sink, the washing machine and the water heater. Not security, but the same alerting path, and the one that has saved our clients the most money.
• Smoke and gas detectors that report to the system as well as sounding locally.

An alert then becomes useful: "the main door opened while the house is in away mode, here is the clip from the entryway camera" rather than "motion detected" forty times a day.

Smart locks

A smart lock is genuinely useful for a household with helpers, tenants, cleaners or elderly parents, because per-person codes can be issued and revoked and every entry is logged.

Three things to insist on. It must have a physical key override or a mechanical fallback - a lock that fails closed with you outside it is not a security upgrade. It should work locally, so an internet outage does not lock you out. And the battery warning has to reach you somewhere you will actually see it.

In Singapore, check the door first. Many HDB and condo doors take specific lock formats, and fire-rated doors have their own constraints.

Being sensible about privacy

Cameras in a shared building need care, and not only legally.

• Point cameras at your own property. A camera covering a common corridor or a neighbour's door is a complaint waiting to happen and a genuinely awkward PDPA position.
• No cameras in bedrooms or bathrooms. Use presence sensors instead; they give you occupancy without an image.
• If you employ a domestic helper, tell them where the cameras are. Notice is both the decent thing and the legally sound one.
• Set a retention period and let recordings age out. Keeping everything forever is a liability rather than an asset.
• Give household members role-scoped access, so a helper's dashboard covers the common areas and does not show private rooms or camera feeds at all.