Series HFT In-Line Flow Transmitters

Local Flow Indication, Unrestricted Mounting, 4 to 20 mA, 0 to 5 V, and 1 to 5 V Output

The Series HFT In-Line Transmitters provide continuous monitoring of flow rate levels via a direct reading in-line flowmeter with electronics to provide proportional 4 to 20 mA, 0 to 5 and 1 to 5 VDC analog outputs.

Calibration Option available under Accessories.

California Residents:  Click Here for Proposition 65 WARNING.

Product Applications

  • Waste water processing
  • Lubrication systems
  • Process control
  • Solar systems
  • Drain lines
  • Pump testing
  • Drive data acquisition devices, meters or analog input cards

Models & Ordering

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Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

COVID-19 Update: Due to high customer demand, lead time on some products may be up to two weeks. While this is a developing health situation, we are working continuously to take the necessary measures to ensure that the products you need are available with minimal interruption.

Model Description Usually Ships* Price Code Order
Ships: 3-4 Weeks
Price: $899.00
In-line flow transmitter, range 1.5-12 SCFM air, 1/4" female NPT. 3-4 Weeks* $899.00 N Order
Ships: 3-4 Weeks
Price: $899.00
In-line flow transmitter, range 4-23 SCFM air, 1/4" female NPT. 3-4 Weeks* $899.00 N Order


Compatible gases or liquids.
Wetted Materials:
Body: Aluminum, brass or 304 SS; Seals: Buna-N or Fluoroelastomer; Magnet: PTFE coated Alnico; Other internal parts: 304 SS.
500 SSU.
Temperature Limits:
170°F (76°C).
Pressure Limits:
Aluminum body: 600 psig (41 bar); Brass body: 3500 psig (240 bar); 304 SS body: 6000 psig (413 bar).
Power Requirements:
12 to 35 VDC.
Enclosure Rating:
NEMA 4X (IP66).
±2% FS.
±1% of FS.
Response Time:
<100 ms.
Output Signal:
4 to 20 mA; 0 to 5 V; 1 to 5 V.
Shipping Weight:
1/4 to 1/2" female NPT models: 3 lb (1.4 kg); 3/4 to 1" female NPT models: 4.5 lb (2.0 kg); 1-1/2" female NPT models: 12 lb (5.4 kg).


  • Provides analog output to monitor application flow and integral direct reading scale to provide local indication of flow rate
  • Increased application versatility with no inlet or outlet straight plumbing requirement and can be mounted horizontally, vertically, or inverted
  • Outdoor or harsh environment installation capable with rugged cast aluminum construction and NEMA 4X (IP65) enclosure


Model Number Description Usually Ships* Price Code Order
NISTCAL-FT1 NIST traceable calibration certificate for flow transmitters. NOTE: EQUAL CERTS WILL BE CHARGED PER UNITS PURCHASED. Less Than 1 Week $222.00 N Order

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