The firms have unveiled the Pro Smart, Sitemaster 2, and Sitemaster 3G, all of which were built with durability in mind.
The Pro Smart comes certified IP67, and is powered by an 800MHz processor. A five mega-pixel camera comes built in, along with a front-facing snapper, SD card support and Google's Android 2.3 operating system.
Certified IP67, the Sitemaster 2 is built to military specification, and has withstood one ton pressure and 2m drop testing. The device comes with a two mega-pixel Camera, FM Radio, torch, and Bluetooth support.
Its 3G counterpart features similar specs, except it comes certified IP54, has a five mega-pixel camera and supports Bluetooth 2.1.
Jason Kemp, marketing director at data select, said: "These three handsets mark the future of tough technology and are a welcome extension of an already impressive range of phones."
All three of the handsets are dust proof and water resistant, and come with a two-year warranty.
> More tech news