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  • Usually ships in 1-2 weeks


  • Available in 3 level sensor technologies
    • Vibration (AZ23), ultrasonic (AU23) or buoyancy (AV23)
  • Lengths from 8in to 10ft (20cm to 3m)
  • ±1mm in water accuracy
  • ±20° vertical orientation
  • 2 (field adjustable) switch points
  • Field adjustable
  • Ideal auto fill/empty controller
  • -40 to 176°F (-40 to 80°C) process temp
  • Contact type: (1) SPDT relay, latching
  • Strobe alert optional, Xenon tube
    • 1 flash per second

The Flowline AZ23 / AU23 / AV23 Smart Trak Compact Level Controller is a general purpose level switch package provides automatic tank filling or emptying up to 10ft (3m) between two adjustable level switch points. The compact level controller with optional strobe provides one latching 16A relay for pump or valve control. Offered in three level sensor technologies, select the type based upon your application media. This polypropylene liquid level switch package is widely selected for sump, process and day tank level applications.

Additional features of the Flowline AZ23 / AU23 / AV23 Smart Trak Compact Level Controller include:

  • Fail-safe relay control of pumps or valves with 0-60 second delay
  • Offered in 3 sensing technologies for broad application coverage: ultrasonic, vibration & buoyancy
  • Easy setup with LED indicators for sensor, power and relay status
  • Rugged polypropylene construction for use in corrosive liquid environments
  • Adjustable level switch cars enable sensor adjustment in the field
  • Invert switch changes relay state from NO to NC without rewiring
  • Field adjustable sensors allow for field corrections
  • Mounts on the top wall of tank
  • Ideal auto fill/empty controller
  • Internal 16A relay connects directly to values / pumps
  • All-in-one package, simply add 120/240 VAC power