Flow > Flowmeters > GPI Flomec QS200


GPI Flomec QS200 Insertion Ultrasonic Flowmeters for Clean Water

GPI Flomec QS200 flowmeters are designed for accurate flow measurement in commercial irrigation, municipal, or underground monitoring applications, measuring both liquid flow rate and accumulated flow. They are suitable for both above- and below-grade applications, and are compatible with most popular brand irrigation controllers.

You can get the QS200 flowmeter in PVC tee configuration for new installations or as a drop-in replacement for existing paddlewheel flow sensors. QS200 inserts are supplied with two single conductors, 36-inch 18 AWG solid copper wire leads with UL Style 116666 direct burial insulation.

Key Specifications

  • For new or retrofit installations
  • Pipe sizes: 1" to 4"
  • Accuracy: ±2% of reading
  • Flow rate: 0.1 to 15 feet per second
  • Leak detection down to 0.1 feet per second
  • Max water pressure: 150 PSI @ 73° F
  • Simple two-wire connector (power and pulse)
  • LED light indicators: green for power and yellow for pulse

Specifications, Manuals, and Supporting Literature

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Model Selection Guide

Use this table to find the right model for your application.  Don't see the option you need? Call a Lesman sales specialist at 800-953-7626

Pipe Size Flow Rate
Flow Velocity
K-Factor (Freq)
QS200 Insertion Ultrasonic Flowmeter with Ryton Body, PVC Tee, Slip Process Port
1"0.22 to 33 GPM
0.83 to 124.92 LPM
0.1 to 15
0.5386 QS200-10
1.5"0.55 to 82 GPM
2.08 to 310.41 LPM
2"0.92 to 138 GPM
3.48 to 522.39 LPM
3"2.06 to 309 GPM
7.80 to 1169.70 LPM
4"3.58 to 537 GPM
 13.55 to 2032.78 LPM 
Replacement Flow Insert Only (Ryton Body, PVC Adapter)QS200
Note: Call 800-953-7626 for insert replacement sensor.


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