Level Measurement & Monitoring

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Pneumatic Gauge Type DELTA-PS (Bubbler)
Seba Pneumatic Gauge Type DELTA-PS (Bubbler)

Product Features
  • Seba Pneumatic Gauge Type DELTA-PS (Bubbler) high accurate bubbler system with strip chart recorder and output signal.
  • Accuracy: +/- 0,05%.
  • Non linearity and temperature influence are microprocessor compensated. 
  • Range: 0 - 2,5m / 0 - 7m / 0 - 10m.

Horizontal Chart Recorder Type XI
Seba Horizontal Chart Recorder Type XI

Product Features
  • Seba Horizontal Chart Recorder Type XI for continous recording of water level fluctuations in rivers and lakes.

Vertical / Angle Staff Gauges
Seba Vertical / Angle Staff Gauges

Product Features
  • Seba Vertical / Angle Staff Gauges for indication of actual water level in rivers, channels and lakes.
  • Made of aluminium cast with m and dm figures.
  • Length: 1m.

CS475-L Radar Water-Level Sensor
Campbell Scientific CS475-L Radar Water-Level Sensor

Product Features
  • High-frequency, economical, low-maintenance radar gauge
  • Compatible with all SDI-12 dataloggers
  • Low power use
  • Wide operating-temperature range
  • Accuracy valid over entire distance and operating-temperature ranges
  • NEMA rated 4X
  • CS475-L Radar Water-Level Sensor use for rivers, lakes, retention ponds, or reservoirs

CS477-L Radar Water-Level Sensor
Campbell Scientific CS477-L Radar Water-Level Sensor

Product Features
  • A radar-based water-level sensor.
  • Mounted above the water surface to be measured, the CS477 uses radar—short microwave pulses—to detect the distance from the sensor to the top of the water.
  • Changes in the level of the surface are measured and used to calculate depth.
  • CS477-L Radar Water-Level Sensor can measure up to 230 feet with an accuracy of ±0.6 inches.
  • Does not come into contact with the water and is therefore ideal for areas where submersed sensors can be damaged due to corrosion, contamination, or flood-related debris. Common applications include water level measurements of rivers, lakes, tidal seas, and reservoirs.
  • Provides a digital SDI-12 signal that indicates distance and water level.

Wave Gauge - NIWA DOBIE

Product Features
  • NIWA Wave Gauge - NIWA DOBIE is for records and analyses water waves.
  • Trigger other instruments and send alarms via a communications link.
  • Raw pressure data are processed onboard to produce wave statistics and spectra in real time.
  • Raw pressure data are subjected to numerous quality checks, dubious points are replaced by cubic-spline interpolation, and sensor noise is explicitly accounted for and rejected from the transformations applied to the pressure data.
  • Because DOBIE checks its estimates of wave statistics (including significant wave height, mean spectral period, wave-orbital speed) against several real-world benchmarks, the statistics are reliable.
  • Cost-effective and reliable delivery of wave information to the user.

Hydrostatic Water Depth & Temperature Probes
Unidata Hydrostatic Water Depth & Temperature Probes

Product Features
  • Provide accurate, long-term measurements of water depths of 1m to 20m in standard ranges, with an accuracy of 0.2% full scale, and water temperature from 0 to 60°C.
  • Fully sealed and temperature compensated.
  • Housed in a rugged stainless steel casing.
  • Supplied with a 15k reference resistor.
  • An integral cable contains a vent tube for barometric compensation and a Kevlar™ support member for longitudinal stability.
  • The cable’s individual signal wires are epoxy sealed into the casing to protect against water ingress.
  • Unidata Hydrostatic Water Depth & Temperature Probes ideal for monitoring drainage, bore depth and river height.
  • To measure water with dissolved solids and other liquids. 

Water Level Logger
Sisgeo Water Level Logger

Product Features
  • Sisgeo Water Level Logger is an integrated system designed for automatic continuous monitoring of water level and temperature inside wells, standpipes and Casagrande piezometers.
  • WLL system is equipped with an accurate ceramic pressure sensor which provides high accuracy and long-term stability measurements.
  • Records absolute pressure, which is later converted to water level readings by the WLL Manager Software using barometric measurements.
  • The optical USB connection interface provide safe and reliable data download also in bad environmental conditions.

SWS Micro-Diver

Product Features

  • Easy installation in small diameter wells
  • SWS Micro-Diver ideal for pump and slug tests
  • Compact datalogger for groundwater monitoring
  • Compact size: Ø 18 mm - length 88 mm
  • 48,000 records of time stamp, pressure and temperature
  • 30-point pressure factory calibration
  • Pre-programmed and user defined pumping tests


Product Features
  • Robust, durable, corrosion proof housing
  • SWS CTD-Diver ideal for long-term monitoring in saline environments
  • Corrosion proof multi-parameter groundwater datalogger
  • Innovative ceramic housing technology
  • Three sensors in one sealed housing
  • Conductivity range up to 120 mS/cm
  • Compact size: Ø 22 mm - length 135 mm
  • Various measurement methods
  • 48,000 records of time stamp, pressure, temperature and conductivity
  • 30-point pressure factory calibration