Model WFM145 Water Digital Turbine Flow Meter specialized for flow measurement use in the hydrostatics industry, inline turbine flowmeters with totalizers for water measure the flow rate and total volume of water and water-based liquids traveling through and moved by a system. Designed especially for use with Water.  Electronic display using two AAA 1.5V batteries. Polyamide body & sealed electronic card makes it suitable for use in severe weather conditions. Display can be rotated in 4 different positions. Easy user re calibration. Hydrorex