Choose by protected volume, layout and risk
A wholesale depot needs more than detection. Spirits, tobacco, tools, cable and pharmaceutical stock can be targeted within minutes of a forced entry. The right security fog system adds an active barrier to your existing alarm and CCTV, deploying dense, non-toxic fog in around three seconds of the alarm trigger. It reduces visibility to near-zero before an intruder can locate, handle or move high-value stock.
The choice between the Density 2400 C-Line, HP 6000 and 2400 Lite depends on the volume being protected, the depot layout and whether you need one large protected zone or several connected areas. Coverage is specified in cubic metres (m³), not simply by floor dimensions. Ceiling height, racking, partitions, cages and access routes all affect the final design.
Compare wholesale depot security fog systems
Alarms detect. CCTV records. Density prevents. Passive security fails.
The three models at a glance:
| Model | Best suited to | Commercial coverage | Typical time to maximum rated coverage | Main advantage |
|---|---|---|---|---|
| Density 2400 C-Line | Trade counters, high-value bays and linked depot zones | Up to 2,400 m³ per unit | Under 64 seconds | Chainable for multi-zone protection |
| Density HP 6000 | Large open depots, warehouse floors and major stock areas | Up to 6,000 m³ | Under 80 seconds | High output for large-volume spaces |
| Density 2400 Lite | Secondary storage, smaller warehouses and satellite depots | Up to 2,400 m³ | Up to 64 seconds | Compact, flexible and cost-effective |
The system begins deployment in around three seconds after a confirmed trigger. The times in the table refer to the unit reaching its maximum rated coverage and depend on the protected volume and installation design. A site survey confirms the correct specification.

Density 2400 C-Line: the flexible choice for multiple risk zones
The 2400 C-Line is designed for wholesale depots where risk is spread across several areas. A single unit can protect a suitable zone up to 2,400 m³. Multiple units can be chained and controlled as one system, making the C-Line appropriate for:
- Spirits cages and tobacco bays
- Cable, tool and electrical stock areas
- Trade counters and collection points
- Separate loading or dispatch zones
- Long aisles divided by cages, walls or racking
This makes the C-Line a strong option for trade counter security fog and tobacco & spirits wholesale security. Rather than treating the depot as one open volume, the installation can be designed around the areas an intruder is most likely to target.
It is also useful where a business is expanding. Additional linked units can support a phased approach, subject to a review of the alarm architecture and protected volume. This can be particularly relevant to multi-site wholesale security UK programmes where different branches have similar high-risk zones but different layouts.
Density HP 6000: high-power cover for large depot volumes
The HP 6000 is intended for larger, more open spaces. It provides coverage up to 6,000 m³ from one high-power unit and is suitable for major stock areas where a smaller system would require several units.
Typical applications include:
- Large wholesale warehouse floors
- High-value spirits and tobacco storage
- Bulk pharmaceutical stock areas
- Open loading and dispatch zones
- Large builders merchant storage environments
- Distribution and logistics depots
For wholesale warehouse theft prevention, the HP 6000 can simplify the design by protecting a large continuous volume. It is often considered where the depot has high ceilings, broad access routes or limited internal separation.
The HP 6000 does not replace good compartmentation, access control or monitored alarms. It adds an active response when those layers detect an intrusion. The final design should consider how fog will move through the space, where an intruder could enter and which stock must be protected first.

Density 2400 Lite: compact protection for secondary zones
The 2400 Lite also covers up to 2,400 m³, but its role is different from the C-Line. It is a compact standalone option for secondary zones, smaller warehouses and satellite locations.
It can suit:
- Secondary stockrooms
- Staff-only storage areas
- Smaller branch depots
- Loading-bay entry points
- Separate pharmaceutical or confectionery zones
- Low-traffic areas that still contain valuable stock
The 2400 Lite is useful for operators looking for commercial security fog systems wholesalers can deploy consistently across a varied estate. Its smaller format supports installations where space around the protected zone is limited, while its food-environment-authorised fluid is suitable for businesses handling food-related goods, pharmaceuticals and packaged stock.
It can also complement an HP 6000 or 2400 C-Line installation. For example, an HP 6000 may protect the main warehouse volume while a 2400 Lite protects a separate dispatch office or secondary storage area.
What all three systems have in common
The three product lines are designed to work with existing commercial security arrangements. They are approved for use with NSI and SSAIB security systems and can connect through a standard relay output from the existing alarm panel. This means the security fog system can be added without replacing the whole alarm installation or creating a separate monitoring structure.
The fog is non-toxic, residue-light and suitable for use around wholesale stock, including food packaging, electrical equipment, pharmaceuticals, tobacco and spirits. The installation must still be designed and commissioned correctly, with operating procedures agreed for alarm activation, investigation, ventilation and re-entry.
The system should also be considered as part of an insurer’s wider security requirements. Active security systems are increasingly mandated as a prerequisite of cover for high-value stock. A proposal should therefore include the relevant product information, commissioning records and compatibility details for your insurer and security provider.
For examples of how active protection is used on commercial premises, review the Density case studies.
FAQ Box
Which Density security fog system is best for a wholesale depot?
It depends on the protected volume and layout. The 2400 C-Line suits linked zones and high-risk cages, the HP 6000 suits large open volumes up to 6,000 m³, and the 2400 Lite suits secondary zones and smaller depots up to 2,400 m³. A site survey confirms the correct specification.Is the 2400 C-Line better than the 2400 Lite?
Neither is universally better. They have a similar maximum commercial coverage, but the 2400 C-Line is designed for chainable multi-zone protection. The 2400 Lite is a compact standalone unit for secondary spaces, satellite depots and smaller warehouse zones.Can the HP 6000 protect a large wholesale warehouse?
The HP 6000 is designed for large commercial volumes up to 6,000 m³. Its suitability depends on ceiling height, racking, partitions and the number of access routes. Larger or complex depots may require more than one unit or a combination of models.Will a security fog system work with an NSI or SSAIB alarm?
Density systems are approved for use with NSI and SSAIB security systems. They can normally integrate with an existing alarm panel through a standard relay output. The installer should confirm the panel, trigger logic and monitoring arrangements before commissioning.Is security fog safe around pharmaceuticals, tobacco and spirits?
Density uses non-toxic fog, with fluid authorised for food environments. It is designed for use around a wide range of commercial stock. Your installer can review the specific goods, packaging and re-entry procedures at survey stage.Does security fog replace CCTV or an alarm?
No. CCTV, alarms, access control and physical security remain important. Security fog adds active intervention when an intrusion is detected. The strongest design combines detection, verification, recording and a rapid physical deterrent.Can security fog help meet insurance requirements?
It can support a documented security design, but requirements differ by insurer and policy. Active security systems are increasingly mandated as a prerequisite of cover for high-value stock. Confirm the required specification with your insurer before installation.
A practical selection process starts with the stock risk, not the product name. Map the likely entry points, identify the route from entry to high-value goods and calculate the volume of every zone requiring protection. Then review alarm compatibility, operating hours, emergency procedures, ventilation and insurer requirements.
For a single large depot, the HP 6000 may provide the simplest high-output approach. For a depot with several cages, counters or separated bays, the 2400 C-Line may provide better control. For secondary zones or a phased multi-site wholesale security UK rollout, the 2400 Lite may provide the right balance of coverage and installation flexibility.
The principle is simple: What you can't see you can't steal. A security fog system does not claim to prevent every incident, but it can remove the visibility an intruder needs to complete a theft. That makes it a practical cash & carry depot theft deterrent, a strong builders merchant security fog option and an active layer for out-of-hours break-in prevention wholesale operations.

Request a free wholesale depot security survey
Tell us the volume, layout, stock profile and existing alarm arrangement. We will recommend the appropriate Density configuration for your depot, whether you need a single high-power unit, linked protection for multiple risk zones or a compact solution for secondary areas. All proposals should be reviewed and approved by Matt before publication or deployment.