How to Choose the Best Security Cameras for NZ Construction Sites

No Power, No Internet, No Fixed Structure

Most standard CCTV systems assume two things: a mains power point to plug into, and a broadband connection to get footage off-site. A new build often has neither for months. That's the actual barrier stopping a lot of sites from getting proper coverage, not a lack of camera options.

This is where a solar and 4G combination earns its keep. A camera that runs entirely off a solar panel and battery, sending footage out over the cellular network, sidesteps both problems in one go. No trenching for power, no waiting on a broadband install, no generator running overnight just to keep a camera alive.

What to Actually Look For

Once you're past the power and connectivity question, the rest comes down to a handful of practical specs.

• Weather sealing: a genuine IP-rated housing that survives rain, wind and dust, not just a "weatherproof" label on the box.
• Night vision: infrared illumination that actually covers your site's real distances in the dark, not just a demo shot in a dim room.
• Motion detection and alerts: a system that flags activity after hours rather than relying on someone reviewing hours of footage the next morning.
• Battery and solar sizing: enough panel and battery capacity to genuinely last through a run of grey winter days, not just a sunny afternoon.
• Coverage pattern: a single wide-angle camera to blanket an open yard, or several fixed cameras aimed at specific pinch points like gates and container doors.

What MSL Actually Recommends

All currently in stock and priced in NZD. Dahua is our core surveillance brand for exactly these conditions.

Not sure which fits your site? Get in touch for a tailored recommendation, or browse the full camera range.

Placement That Actually Works

The best camera on the market is only as good as where you put it. A few things worth getting right from day one.

• Mount high: above the reach of swinging machinery, moving vehicles, and anyone tempted to tamper with it directly.
• Cover the pinch points: site entrances, tool and material storage, vehicle access, not just the areas that happen to be easy to mount a camera on.
• Check for blind spots after every site change: a stack of timber or a relocated container can block a camera's view overnight. What worked last week might not work this week.
• Use visible signage: people behave differently when they know they're being recorded, and it's a straightforward deterrent on its own.

Keeping It Working

A camera system on a construction site needs more regular attention than one bolted to an office wall, simply because the site itself keeps changing around it. A quick check at the start of each shift, lens clear, angle still correct, solar panel not blocked by newly stacked materials, catches most problems before they become a gap in your coverage. Keeping a simple log of checks and adjustments is worth the five minutes it takes, especially on a longer project.

Is This Worth the Investment?

Stolen tools and equipment don't just cost the replacement price. They cost the days lost rebooking hire gear, chasing suppliers, and pushing a schedule that was probably tight to begin with. Weighed against that, a properly specified camera setup, solar-powered and cellular-connected where you need it, fixed and cabled where that's more practical, is a genuinely sensible line item rather than an afterthought.

Built for Sites That Don't Have Power Yet

Mobile Systems Limited supplies Dahua security cameras and solar-powered 4G CCTV bundles from Mount Maunganui, built for exactly this kind of site: no permanent power, no fixed broadband, and conditions that don't let up for the weather. We install and support these systems across the Bay of Plenty, Coromandel, Rotorua, Taupō and Eastern Waikato, with nationwide equipment supply. See our full commercial security camera and CCTV systems range for permanent, wireless and hardwired options beyond construction sites.