When it comes to waterproof submersibility, measured according to the European IP rating system, most manufacturers offer either the standard splash-proof IP54 rating, or the bare basic IP67 submersible rating - just 1 metre’s depth for 30 minutes.

Entel is the first and only manufacturer to offer the superior IP68 specification, whereby a manufacturer can determine at what depth and for how long its equipment must remain waterproof. Not content with just the entry-level 1 metre for 30 minutes Entel’s meticulously engineered HT series is certified as waterproof-submersible to an unprecedented depth of 5 metres for 60 minutes.

Generally, other manufacturers design and mass produce their submersible portables based on the original prototype alone successfully achieving the IP67 rating. Entel believes this is simply not good enough, as the smallest tolerances of case size and material variation alone could compromise the radio’s waterproof integrity. Uniquely, each individual Entel portable is tested on a custom-built air-pressure test-jig to ensure it meets the exacting high standards we have set for ourselves.

With their IP68-rated submersibility, it’s no wonder that Entel HT series radios are chosen, worldwide, for use in the most unforgiving environments: sea-based oil rigs and chemical factories use them, freighters, tankers and leisure craft use them.  Every conceivable application uses them, from swimming pools, to farms, to construction sites, from golf courses to the UK Fire and Rescue services.