Computer equipment can generally operate between 5°C and 35°C. Surrounding this equipment with an enclosure will trap heat inside and create 'hotspots'. The equipment is likely to overheat as a result, thus reducing its Mean Time Before Failure (MTBF). When you least expect it, the equipment can fail due to this.

Sentinel Enclosures provide temperature controlling solutions for enclosures, from cooling fans to heater modules. We have experience of maintaining thermal label printers at above +5°C in a hostile environment of -30°C and still functioning today!

Our solutions are tailor-made to the environmental requirements. In the majority of cases a normal external to internal air cooling fan is the practical answer where the external temperature is below 30°C and above 5°C and an IP54 maximum protection rating is required (we can advise of this). In an IP66 enclosure, an internal re-circulating fan is the desirable choice; this stirs the air constantly, giving an even temperature throughout the industrial computer enclosure and avoids 'hotspots'.

Above +30°C - If the external ambient temperature outside the enclosure exceeds 30°C for prolonged periods, then alternative cooling solutions are required. At Sentinel Enclosures, we have a range of products, such as heat exchangers, vortex cooling and air conditioning that can provide a controlled solution.

Below +5°C - If the external ambient temperature outside the enclosure drops below +5°C for prolonged periods, then heating solutions are required. Sentinel Enclosures have a range of heating modules that will enable your computer equipment to function fully within its operational temperature limits.

Below -5°C - In frozen environments Sentinel Enclosures can provide an effective computer enclosure solution, enabling the equipment to function fully in temperatures as low as -30°C. This solution is tailor-made to your requirements and depends upon how you wish to use your equipment; call us with your details.

All temperature control solutions given are for IP54 enclosures to IP66 enclosures. Please check your computer equipment for operational temperature and humidity specification, to ensure that Sentinel Enclosures can advise you correctly on the solution.


If you do not want electro-magnetic distortion on your monitor front screens, then choose a flat-panel TFT solution. We can also enclose it and protect it from the harmful effects of RFI and EMI, using the latest technology in metal-to-metal surface bonding techniques. A copper-mesh embedded window can be bonded to the chassis so that viewing of the screen is not a problem. When CRT is a must, then the same rules apply, except that external magnetic fields can distort the picture quite alarmingly. The copper-mesh embedded window can solve this problem too. All doors and cable entry plates come with sealed metal-to-metal bonding to eliminate all potential leak paths in both directions.


Heavy factory machinery can cause fluctuations on power circuits, whether it be current surges or voltage spikes; this can severely damage computer equipment. Sentinel Enclosures can include a surge/spike-protected 4-way mains adapter for added protection against these electrical anomalies.


Vibration can damage or dislodge electronic components such as CPU Processors, hard disk drives, plug-in cards, RAM memory - almost anything that connects into each other can become dislodged. Sentinel Enclosures' anti-vibration chassis plates and shock mounts protect your computer or monitor from high frequency vibration.


Sentinel's enclosures are manufactured using 1.5mm (16 SWG) seam-welded steel shells. This provides strength at the corners as well as the sides of the enclosure. The PC, monitors and printers will survive high-speed forklift collision inside a Sentinel enclosure.

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computer trolley with monitor enclosure and built in keyboard with trackbal
Computer monitor enclosure on pedestal with mouse and keyboard shelf
metal computer enclosure with display and open keyboard tray