Flow Sensors | McMaster-Carr

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267 Products

Flow Transmitters

Send flow rate measurements to PLCs, data loggers, and remote displays

11 products

Contactless Flow Transmitters

Measure and transmit flow rate from outside your pipe with ultrasonic waves

1 product

Flow Transmitters with Sight

Visually confirm that liquid is flowing

29 products

High-Accuracy Flow and Temperature Transmitters

Use a magnetic field to measure flow rate and temperature with high accuracy

5 products

Flow and Temperature Transmitters

Send flow rate and temperature measurements simultaneously

8 products

Flow, Pressure, and Temperature Transmitters for Gases

Transmit flow rate, pressure, and temperature of industrial gases

2 products

Insertion-Mount Flow and Temperature Transmitters

Install through a ring fitting in pipe too large for inline transmitters
Send flow rate and temperature measurements simultaneously

4 products

Compression Tube Flow Transmitters for Gases

Measure flow rate in gas lines and send the data to receiving devices

10 products

Ultra-Low-Flow Flow Transmitters

Often used in low-flow metering applications for lubricants or antifreeze

2 products

Build-Your-Own Flanged Pipe Flow Transmitters

Install between two flanges in a flanged pipe system

12 products

Other Products

Flow Switches

Turn equipment on or off when flow rate reaches a set point

171 products

Flowmeters

Measure the flow rate of a liquid or gas

1 product

HVAC Switches

Control and monitor airflow in HVAC systems automatically

3 products