V-Meter is a hand-held meter is designed to take flow and volume measurements of gases. It is versatile and lightweight to take flow and volume measurements and has wide variety of applications makes it ideal for checking procedures and control tasks. It has a menu controlled PC programme that can be used to display and evaluate the gained data. The displayed values that can either be saved in the internal memory and/or transfered to a PC using the integrated. It measures the following units - flow, minute and tidal volume and respiratory rate.