In case you don't wish to use a PC, there's the VIEW-101 Graphic display unit (GDU). The unit's touch-screen interface along with an intuitive and attractive graphics enables you to set up an experiment in a speedy and simple fashion. It records the gathered data from up to 5 different sensors at a time, and displays it in both digital and graph forms. The Graphic Display Unit is used when a PC is not available for each group. It can work with up to 5 sensors in parallel. When the GDU VIEW-101 receives power, it starts scanning and identifies the connected sensors. The located sensors are displayed on the left side of the screen. Some of the unit's features are: Automatic recognition of sensors, Uses preset experiment parameters for easy initiation, Communicates with all the sensors or one at a time, Controls each sensor's range and measurement units, Internal charging circuit is incoporated, Mode to view sensor values in real time - up to five at a time, Automatic Power-Off for longer battery life.