RS PRO Radial Flow Turbine Flow Meter, 0.25 L/min → 6.5 L/min,

  • RS stock no. 257-149
  • Manufacturer RS PRO
Technical data sheets
Legislation and Compliance
Not Applicable
COO (Country of Origin): GB
Product Details

Liquid Flow Sensors

Two flow transducers manufactured in acetal copolymer with brass compression fittings at both ends to fit 15mm diameter pipe connections.

Provides a pulsed output proportional to flow rate
LED and photodetector are separated by a turbine mounted on sapphire bearings
LED requires an external current limiting resistor (dependent on supply voltage)
Suitable for use with mains and heating system waters etc.
Rise/fall times 60/6ns
Output voltage 200mV (low); VCC (high)
Diode: Forward current 10mA, Power dissipation 100mW


Not suitable for use with strong mineral acids/solutions, strong or searching solvents.

Attribute Value
Media Monitored Liquid
Device Type Radial Flow Turbine
Minimum Flow Rate 0.25 L/min
Maximum Flow Rate 6.5 L/min
Supply Voltage 4.5 16 V dc
Pipe Diameter Range 15 mm
Maximum Pressure 20bar
Material Acetal Copolymer
Minimum Operating Temperature -40°C
Maximum Operating Temperature +70°C
Current Rating 10 mA
4 In stock for delivery next working day
Price (Excl VAT) Each
R 632.50
(exc. VAT)
R 727.38
(inc. VAT)
Per unit
1 - 5
R 632.50
6 - 11
R 619.85
12 +
R 601.25