Construction Site Theft: What Gets Stolen, Why Sites Are Defenceless, and the Camera Spec That Actually Holds

The short answer: construction site theft is an after-hours, no-power, no-witness crime

Construction site theft is the removal of hand tools, power tools, copper cable, fuel, rebar, scaffolding components, generators and small plant from active or shut-down building sites — overwhelmingly at night, at weekends and during holiday closures, through a perimeter that is temporary fencing and very little else. It is hard to stop for one structural reason: the thing a conventional security camera needs — mains power and a fixed broadband line — is exactly what a construction site does not have until the project is nearly finished. The working fix, and the reason this has become a fast-moving wholesale category in Vietnam and Latin America, is a battery-and-solar camera on a 4G LTE SIM. It mounts on a fence post, a site container or a light tower in 5–10 minutes, needs no cabling and no electrician, relocates as the site phases change, and keeps recording when the temporary supply is switched off at the end of the shift.

If you are a distributor or procurement buyer rather than an end user, that paragraph is the whole sales argument for the category. What follows is the detail your contractor and rental-yard customers will push back on, and the specification that survives the pushback.

Why a construction site is the hardest place a camera gets installed

There is no power until the project is nearly over

A site gets a permanent electrical supply late. For the months when materials are stacked in the open and the site is at its most exposed, power is a generator that runs during working hours and stops when the crew leaves — which is precisely the window in which theft happens. A mains camera on a site generator is not a security system; it is a device that switches itself off at the start of every high-risk period.

There is no broadband, and nobody is watching a monitor

Site offices run on mobile data. Pulling fibre to a temporary cabin for CCTV is not something a main contractor will authorise for a twelve-month project. That leaves 4G LTE as the only realistic backhaul, and it makes the SIM and the data plan part of the sale — something distributors should price into the bundle rather than discover afterwards.

The perimeter moves every few weeks

Groundworks, superstructure, envelope and fit-out each have a different footprint, a different set of valuable stock and a different weak point in the fence. A hard-wired installation is obsolete the moment the site layout changes. Redeployability is not a convenience feature here — it is the difference between a system that is used and one that is abandoned in a container.

What "enough camera" means on a live site

AOV versus PIR-triggered recording

Most cheap battery cameras record only when a passive infrared sensor fires. PIR is a heat-differential sensor, so it misses slow movement, misses anything outside its narrow detection cone, and misses a figure moving across the frame at distance. On a construction site — where the meaningful event is often a vehicle backing up to a stack of cable at 3 a.m. at the far side of the compound — that failure mode is the whole problem.

AOV, or Always-On Video, is the industry-generic term for continuous 24/7 recording held at low standby power by on-device AI scene analysis rather than by a motion trigger. The camera is always recording; the intelligence decides what deserves full-rate encoding, an alert and a cloud push. For a buyer, the practical consequence is a continuous timeline you can scrub, instead of a folder of clips that begins after the theft started. Of Shenzhen Leksell's 150-SKU catalogue, 49 models are AOV, with wholesale prices quoted per order, in four series:

Resolution is 1080p–2K as standard across the range; 4K is available only as a custom or OEM build, and any supplier quoting you 4K off the shelf in this price band is worth a second look. Storage is microSD up to 128GB as standard, with higher-capacity cards and cloud retention handled on custom orders. Outdoor housings are IP66 — rated against heavy rain and dust, which is what a site parapet in the Mekong Delta or a coastal project in Peru actually delivers.

The 8W versus 15W decision is a site-condition decision

The panel and battery pairing is where quoting goes wrong. An 8000mAh / 8W camera is the right answer for an open compound with clear southern or northern sky, where the panel harvests every day. A 20000mAh / 15W unit — the SG-D42G-15F66-V* series — is the answer for the conditions that break the cheaper build: cameras shaded by a rising superstructure or by tower-crane sweep, monsoon weeks with consecutive overcast days, and short winter daylight on higher-latitude sites in Latin America. Selling an 8W unit into a shaded position produces a return, not a repeat order.

Lens count maps to coverage geometry, not to prestige

A single-sensor unit covers a gate, a compound corner or a material stack. A dual-lens unit gives you two fields from one mount and one SIM — typically a wide overview plus a tighter view of an approach — which is why the dual-lens series carry 34 of the 49 AOV variants between them. Triple-lens units suit a mast position that has to hold three directions at once, such as a container stack in the middle of an open compound.

Sourcing it: MOQ, margin, lead time and private label

Shenzhen Leksell has manufactured since 2012 and holds TÜV Rheinland certification alongside CE, FCC and RoHS — the paperwork your customs broker and your larger contractor customers will ask for before a tender, not after. Full specifications for every SKU are published at /en/products/.

Trial orders start at an MOQ of 10 units, which is deliberately small enough to put a working system on one real site and let the contractor's own footage make the second order for you. Dealer margin is 20% from around 10 units and 30% from around 50. OEM and ODM work — your housing marking, your box, your app branding — starts at 100 units and is available across the catalogue, including all 49 AOV models; the dealer programme sets out the tier terms in full.

Lead times are the figure to put in front of a contractor customer, because construction procurement runs on dates:

The Vietnam office is in Ho Chi Minh City, which is what makes the 7–10 business day domestic figure real rather than aspirational. For Latin American buyers, the 25–40 day sea window is the number to build a stocking plan around: a site that has just been hit orders this week, and the distributor who can ship the same week wins the account. That argues for holding depth in one or two SKUs rather than breadth across the whole range — most construction enquiries resolve to an open-compound unit and a shade-tolerant unit, and the two dual-lens series cover the majority of real quotations.

One closing note on quoting discipline. Construction buyers compare datasheets line by line, and inflated numbers are the fastest way to lose a tender on the second round. Quote the battery, the panel wattage, the ingress rating and the storage as they are published, and let the 5–10 minute install and the absence of any cabling trade do the persuading. Wholesale pricing and container terms are at /en/wholesale/, or write to info@solaguard.net with the site conditions and quantity and a human will build the quotation.