KAL-L - Thermal Air Flow Switch

Brand: KOBOLD Instruments, Inc

The KOBOLD KAL-L flow switch allows rapid detection of flow rate changes in non-hazardous gases. Fast reaction times are guaranteed by the electronic design.

Through the use of two RTD's, one to sense flow and the other to detect ambient temperature, the switch can compensate for thermal changes in its surroundings.

This “smart” behavior minimizes erroneous switching due to changes caused by things such as the weather. Almost any conceivable pipe size can be accommodated by the insertion style design.

Knowledge of the flow velocity in your system is all that is needed to make the KAL-L work.
  • Negligible Pressure Loss
  • No Moving Parts
  • Adjustable Response Time
  • Temperature Compensated
  • Easy to Install


Measuring Range

  • 3.3 to 66 ft/sec


  • 1/2” NPT Thread, Flange


  • SPDT Relay, Max. 250 Vac / 1000 VA / 4A

Maximum Pressure

  • 120 psig

Maximum Temperature

  • 250° F

Switching Accuracy

  • ± 10 % of Reading

Media Category

  • Gas

  • Air Conditioning Systems
  • gas Flow
  • ventilation Systems


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