There are four models in the KENZ product line of Large Aneroid Sphygmomanometers; a wall mount model, a clamp mode. a floor lamp model, and the Desk and Handy Model No. 543 shown here. All four models feature a large, easy-to-read dial. The floor lamp model rests of four wheels for ease in transport.The clamp model can easily be mounted on a cart or trolley.