VPInstruments has changed the design of her proprietary flow sensor. Due to this new flow sensor design and a review of our calibration protocol, we offer now our insertion flow meters with one flow range; with good accuracy over the entire flow range. This flow range combines the accuracy in the low flow ranges of the old version with flow range up to 80 mn/sec, with the flow range extension of our model up to 150 mn/sec. The new flow range, 0.5..150 mn /sec, combines all benefits. With only one model you are now equipped for all your compressed air and gas flow measurements. Selecting the right flow meter has never been so easy!