Crystal engineers providesoffers paddle wheel sensors-flow meters. The company manufactures paddle wheel sensors-flow meters are manufactured by crystal engineers. These paddle wheel sensors are used for the past ten years and has a proven record of performance in various fields. Some of the technical features of these sensors include: different models are available depending on the diameter of the pipes, up to 1000 mm diameter. The company has both hot and retrofit type assembly systems. The velocity sensing is 0.7 ft/sec to 20 ft/sec. Accuracy is almost one per cent. This has excellent repeatability and linearity. These have been tested at different leading laboratory with satisfactory results. The dimensions are 25 x 150 mm. The product is eeconomic, very reliable and accurate are some outstanding features of this product. It has proved itself to be very durable. Moreover this is absolutely maintenance free. It has already installed these meters at various specifications ranging from 200 mm diameter to 600 mm diameter and these are performing without any problem. The meters are approved by various water agencies all over the country. Different models are available depending on the diameter of the pipes, up to 1000 mm diameter. The company has both hot and retrofit type assembly systems. The velocity sensing is 0.7 ft/sec to 20 ft/sec. Accuracy is almost one per cent. This has excellent repeatability and linearity. These have been tested at different leading laboratory with satisfactory results. The dimensions are 25 x 150 mm.