Proteus 6000 Series Flow Meters use a simple turbine principle to generate a pulse output that is directly proportional to the instantaneous flow rate. Magnets in the six-spoke rotor turn a Hall Effect transistor on and off as liquid flows through the sensor. The sensor’s pulse output signal is a square wave with an amplitude of 5–28 VDC depending on the input voltage. The output frequency ranges to 240 Hz at the maximum flow rate for each meter. Both PNP and NPN outputs are provided.

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(650) 964-4163

(650) 965-0304

For special orders and California reseller with a resale certificate, please call us directly to place your order.

Detailed product inquiries:

Technical inquires:

Phone: (650) 964-4163

Proteus offers free samples of standard Proteus-manufactured flow switches or flow meters for evaluation in new applications by prospective OEM customers.

To request a free sample, please send an e-mail describing your application to with “Free Sample” in the subject line. Be sure to include your name, the name of your company, the address to which the sample should be sent and your telephone number. You may also call Mark Malfatti or David Chiasson at (650) 964-4163.

Who is an OEM?


OEM customers are those who incorporate our product into their own product for commercial sale to end users. Usually, you will have a website or product data sheet showing a product that incorporates flow measurement.

WeldSaver™ products, Tofco flow products and Florite control units are not included in this offer. There is a limit of one free sample per customer. Proteus Industries retains the sole right to determine which companies are qualified OEMs for the purpose of this offer.

  • 6000 Series Flow Meter
  • 6000 Series Flow Meter
  • 6000 Series Flow Meter a
  • 6000 Series Flow Meter b

6000 Series

6000 Series Flow Meter
Pulse output for easy interfacing with your PLC

> Flow rates from 0.2 to 227 LPM / 0.06 to 60.0 GPM
> Pulse output from 5–24 VDC
> Optional digital display
> Integrated RTD temperature option
> FluidVision USB option
> Customization available for OEMs
> 5-year warranty