Enhanced Optical Sensor Switches for Rotameters


Improved optical sensor switches offer a non-invasive way to detect high or low flow rates.  Operators simply power up, slide and set the carrier with the self-contained miniature photoelectric sensors to monitor the desired level of flow.  

An orange light signals that the float is in the desired position. Excellent for OEM applications, the enhanced sensors, consisting of transmitter and receiver, will signal a cut-off valve, alarm, or other device (not included) when the float passes above or below the desired setting.



  • Enhanced Sensor Switches with one or two rigid carriers
  • Can be used in conjunction with a customer-supplied control relay to power alternate equipment or monitoring devices.
  • Works with all float materials including transparent red-colored floats made from sapphire due to the sensors’ enhanced design consisting of receiver and transmitter.
  • Response time: 0.5 MS
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