variable-area flow meter / for liquids

Aalborg Instruments? Optical Sensor Switches are a non-invasive way of detecting maximum and minimum flow rates that can damage your equipment and processes when automatically operated.
Optical Sensor Switches' Features Include:
? Compact size
? Easy to install and operate
? Excellent for OEM applications
? Easy mounting carrier with Thru beam type photoelectric sensor
? Ideal for automatic monitoring of maximum or minimum flow levels
? Signaling when float is out of light beam range
? Will work with all float materials including clear red colored floats made from sapphire due to the sensor?s enhanced design consisting of receiver and transmitter.
Aalborg?s P, S, and T model flow meters are also compatible with the optical sensor switch.