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FloWatch Water & Air Speed Flow Meter Kit (FW450) with Probes & Case

Model #: FW450
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Category Anemometers-Air Flow

FW450 is an accurate measurement device for water flow and air speed, as well as temperature. The Flowatch is water proof, has a backlight, and can be set to measure an average speed between 3 seconds and 24 hours.

  • Instant speed, wind or water.
  • Speed units: km, h, m/s, knots, mph, fps and cm/s
  • Maximum and average speed
  • Temperature
  • Minimum and maximum temperature
  • Selectable averaging period from 3 seconds to 24 hours
  • Backlit 4-line LCD with 0.4 in. (10mm) high digits
  • Completely waterproof and weatherproof
  • Battery indicator
  • Engineered in Switzerland
  • CE and RoHS approved
  • 1/4" base for tripod attachment


  • Balanced impeller
  • The impeller is magnetized, producing a magnetic field when rotating which is passed through the cable to the display unit
  • Records maximum and average flow speed


  • Temperature adjusts quickly
  • Temperature is read at the end of the rod
  • Water temperature is read as well
  • Records maximum and minimum temperatures


  • Flow rate range: 2 to 93 mph (0.3 to 150 km/h)
  • Resolution: 0.1 unit
  • Accuracy: within 98% plus 1 either way
  • Temperature range: -4F to 158F (-20C to 70C)
  • Resolution: 0.1
  • Accuracy: within 0.38F (0.2C)
  • Power Source: (2) AA batteries (included)
  • Dimensions: 2.5" x 2.5" x 6.1" (65 x 65 x 155 mm)
  • Weight: 8.3 oz (235g)
  • Operating temp: -58 to 212F (-50 to 100C).
Supplied with:
  • Flowatch handheld display unit.
  • 60mm diameter water impeller.
  • 20mm diameter air impeller.
  • Aluminum telescopic rod: 3.9 feet (1.2m).
  • 6.6 foot (2m) cable.
  • Soft-shell padded case with zipper.
Optional accessories:
  • 12mm diameter FloWatch Air Impeller (FW450-12).
  • FloWatch Hanging Water Current Sensor with 15m Cable (FW450-50).
UPC: 681035013748
Search Category: Hardware > Tools > Measuring Tools & Sensors
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Category Anemometers-Air Flow
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