The general purpose ultrasonic level switch provides continuous level detection up to 49.2” (1.25m) with 4 programmable relays for level switch or level control functions, and is configured via our free WebCal software. The embedded level controller can lower cost by replacing external control hardware. This non-contact liquid level sensor is ideally suited for corrosive, sticky or dirty liquids, and is broadly selected for small day tank, skid, IBC, sump and process tank level applications.


  • Level detection, switch and control functions up to 49.2” (1.25m)
  • Configuration is fast and easy via WebCal software and USB adapter
  • Narrow 2” beam width and short 2” dead band optimized for small tanks
  • Four programmable relays for switch, pump or valve control and fail-safety
    • 1 pump or valve with 3 alarms
    • 2 pumps lead-lag with 2 alarms
    • 2 pumps duplexing with 2 alarms
    • 4 independent switch point alarms
  • PVDF transducer and 6P polycarbonate enclosure for corrosive liquids
  • Automatic temperature compensation for accurate measurement


P/N Description From
DS14-00 1.25m (49.2”) range, 1″ NPT, w/o Fob $355.00
DS14-01 1.25m (49.2”) range, 1″ NPT, w/Fob $400.00
DS14-10 1.25m (49.2”) range, 1″ G, w/o Fob $360.00
DS14-11 1.25m (49.2”) range, 1″ G, w/Fob $405.00


WebCal software is a PC utility program that enables users to easily configure and test compatible Flowline level sensors to their measurement and control requirements. Download your free copy.



Range: 49.2” (1.25m)

Accuracy: 0.125” (3mm)

Resolution: 0.019” (0.5mm)

Dead band: 2” (5cm)

Beam width: 2” (5cm)

Configuration: WebCal® PC Windows®, USB 2.0

Memory: Non-volatile

Supply voltage: 12-24 VAC / VDC

Consumption: 0.5W

Contact type: (4) SPST relays, 1A

Contact fail-safe: Power loss: Hold last, Power on: Open, close or hold last

Hysteresis: Selectable

Process temp.: F: 20° to 140°, C: -7° to 60°

Temp. comp.: Automatic

Ambient temp.: F: -31° to 140°, C: -35° to 60°

Pressure: MWP = 30 PSI (2 bar)

Enclosure rating: Type 6P, encapsulated, corrosion resistant & submersible

Encl. material: Polycarbonate

Strain relief mat.: Santoprene

Trans. material: PVDF

Cable jacket mat.: Polyurethane

Cable type: 9-conductor, shielded

Cable length: 48” (1.2m)

Process mount: 1” NPT (1” G)

Mount gasket: Viton®

Classification: General purpose

Compliance: CE, RoHS

Approvals: cFMus


If you want help in selecting a sensor for your application, please submit a Level Questionnaire. An engineer will review your requirements and suggest a product solution via email.