Flow Probe Hand-held Flowmeter (current meter)

Flow Probe Hand-held Flowmeter Ideal for storm run-off studies or flow measurings of rivers, streams, canals, and sewers. Incorporates true velocity averaging for the most accurate measurement possible. The probe shaft is available in lengths that extend from 3' to 6' and from 5' to 15'. Located on the bottom tip is a protected Turbo-Prop sensor which uses the most advanced positive displacement technique available. For minimal friction, this 2" Turbo-Prop sensor rotates freely on a bearing shaft with no mechanical interconnections. Magnetic material in the propeller passes a pickup coil in the housing producing electrical impulses. These electrical impulses are then carried by wire to a readout display on top of the handle. This readout display amplifies and converts the signal into feet/meters per second readings. Instantaneous velocity and true average velocity are then displayed. A unique two-button keypad allows other functions to be displayed including maximum velocity, time-of-day, stop watch, totalizer for batch flows, and RPM for accurate low velocity measurement. Features a padded gun-type carrying case and long life watch-type batteries for readout display (no battery required for Turbo-Prop). Probe can be extended up to 25' with standard PVC pipe and electrical extension cable. Specifications – Range: 0.3 to 15 FPS (0.1 to 4.5 MPS). Accuracy: average velocity ±0.1 FPS, instantaneous velocity ±0.5 FPS. Averaging: true digital running average. Display: LCD. Sensor Type: protected Turbo-Prop propeller with electromagnetic pickup. Weight: 2 lbs. Size: probe expands from 3' to 6', sensor housing is 2" in dia. x 3"L. Materials: PVC handle and propeller housing, anodized aluminum shaft, brass bearing. Power: Internal replaceable watch-type batteries with one-year life. Operating temperature: 0°F to 120°F. (Forestry Supllier Inc. - USA)