Gems RFA Type Electronic Flow Sensor

Last Updates: 15/02/2021

Gems 230209


Sensor TypeRotorFlow
Standard Flow Range (GPM)0.1 – 1.0
Flow Range (GPM)0.1-1.0
Body MaterialBrass
Port Size1/4″ NPT Female
Input Power24 VDC ±10%
Output0-10 VDC Anaolg Signal @ 1mA, Max.
Low Flow Accuracy±7%
Standard Flow Accuracy±7%
Maximum Pressure (PSI)200
Minimum Temperature (°F)-20
Maximum Temperature (°F)212
Electrical Termination22 AWG, 24″-24″ PVC Cable
Wetted MaterialsBrass, Ceramic, PPS Composite, Polysulfone, Viton (Low Flow Adapter – Polypropylene)
Recommended Filtration150 micron


Gems™ Sensors popularized the RotorFlow’s® paddlewheel design by combining high visibility rotors with solid-state electronics that are packaged into compact, panel mounting housings. They provide accurate flow rate output with integral visual confirmation and an unprecedented price/performance ratio. 

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