East West Infiniti Pvt Ltd.

...where electronic technology speaks

WL400 Water Level Sensor

Submersible Pressure Transducer for Level & Pressure


  • High accuracy and reliability
  • Completely submersible pressure transducer and cable
  • Compact, rugged design for easy installation
  • Minimal maintenance and care
  • Water level sensor compatible with most monitoring equipment
  • 4-20mA output
  • Vented cable for automatic barometric compensation
  • Multiple level ranges available from 3' to 500'
  • Wet-wet water level sensor eliminates vent tube concerns
  • Dynamic temperature compensation system
  • Submersible pressure transducer not affected by foam, wind, or rain
  • Monitors levels in groundwater wells, rivers, streams, tanks, lift stations and open channels
  • CE Certified


Sensing Element

Sensor Element: Silicone Diaphragm, Wet/Wet Transducer

Pressure Range: 0-3, 0-15, 0-30, 0-60, 0-120, 0-250, 0-500 ft

Linearity and Hysteresis: ±0.1% FS

Accuracy: ±0.1% of full scale at constant temperature, ±0.2% over 35°F to 70°F (1.37° to 21.1°C) range

Overpressure: Not to exceed 2 x full scale range

Resolution: Infinitesimal (Analog)

Outputs: 4-20 mA or 0.5 to 2.5 VDC across 125 ohms

Supply Voltage: 8 to 36 VDC

Current Draw: Same as sensor output

Warm Up Time: 3 seconds recommended

Operating Temperature: -40° to +185°F (-40° to +85°C)

Compensation: Uses dynamic temperature compensation 30 to 70°F (-1.1 to 21.1°C).  Automatic barometric pressure compensation

Weight: 1/2 lb (227 g)


Material: 304L Stainless Steel, SS microscreen (hundreds of holes to prevent fouling), electronics are fully encapsulated in marine grade epoxy, guaranteed not to leak

Size: up to 13/16 inch diameter x 5 1/2 in long (2 cm dia. x 14 cm long)(small enough for a 1 inch (2.54 cm) well).  Titanium option has 1 inch (2.54 cm) diameter.

Vented Cable

Conductors: 4 each 22 AWG

Material: Marine grade polyether jacket, polyethylene vent tube, full foil shield

Outer Diameter: 0.306 inch (0.78 cm)

Temperature Range: -22° to +185°F (-30° to +85°C)

Weight: 0.7 oz/ft (~65g/m)

Length: Standard 25 ft (7.62 m) (up to 500 ft (152.4 m) from factory)