The Topaz aneroid model has combined bellows and gauge and also benefits from a trigger control for fingertip pressure release whilst still offering the option of screw valve release. The Topaz also has a rotating head, which allows the unit to be used comfortably by both left and right handed users.

The Topaz features a 54mm dial to ensure easy reading of pressure values.

Supplied with a standard adult black nylon calibrated cuff and zip up pouch for handy storage.