RS PRO Flow Meter, 2.5 → 30.0 L/min Max

View all Flow Sensors

Subtotal (1 unit)*

£321.97

(exc. VAT)

£386.36

(inc. VAT)

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  • 7 unit(s) ready to ship
  • Plus 3 unit(s) shipping from 30 October 2025
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1 +£321.97

*price indicative

RS Stock No.:
511-3909
Brand:
RS PRO
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Brand

RS PRO

Maximum Flow Rate

2.5 → 30.0 L/min

Supply Voltage

4.5 → 24 V dc

Pipe Diameter Range

1/2 in

Minimum Operating Temperature

-25°C

Maximum Operating Temperature

+125°C

Current Rating

10 mA

RoHS Status: Exempt

COO (Country of Origin):
GB

RS PRO Flow Meter, 2.5 L/min to 30.0 L/min


Use this flow meter from RS PRO to control the speed at which liquid passes through a mechanical system. You'll find a component like this in industrial cooling systems and it's also useful for laboratory testing. This flow sensor is suitable for water, low viscosity liquids, and opaque fluids.
The unit has chemical-resistant housing so it won't be negatively affected by aggressive and hazardous fluids, such as diesel. Its sapphire bearings are extremely resistant to shock, so the function of the flow meter remains unaffected when exposed to vibration or bumps. Sapphire also has low friction to keep the unit running smoothly. Hall-effect sensing technology ensures the meter provides highly reliable flow rate readings.
This component is well-suited to semiconductor and water treatment plants. Its IP65 (Ingress Protection) rating means it's completely protected from dust and is water-resistant.

Features and Benefits


• NPN (negative-positive-negative) control output
• Current rating of 10 mA
• Cable electrical connection
• Maximum flow rate of 2.5 L/min to 30.0 L/min
• Operating temperature range of -25°C to +125°C
• Pipe diameter range of 1/2 inch
• Supply voltage of 4.5 V DC to 24 V DC

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