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Cera Diver water level logger
Cera Diver water level logger
Diver water level loggers family
Cera Diver water level logger
Diver water level loggers family



The Cera-Diver is a robust and durable data logger, suitable for measuring and recording groundwater levels and temperatures in potentially corrosive conditions. Available variations in range: 10 m, 20 m, 50 m and 100 m.

  • Easy installation in almost every well
  • Compact size: Ø 22 mm - length 90 mm
  • Innovative, corrosion-proof ceramic housing technology
  • Reliable and accurate data
  • 48,000 records of time stamp, pressure and temperature


Monitoring groundwater under potentially corrosive conditions, such as brackish water and seawater, requires a robust and durable datalogger. The ceramic-shelled Cera-Diver is designed specifically for such environments. This highly reliable and compact Diver measures groundwater levels with a typical accuracy of ±0.05% full scale.

In addition to its rugged casing, the Cera-Diver’s memory capacity can store up to 48,000 measurements (date/time, pressure and temperature). That's almost one measurement every ten minutes for an entire year. Connect the diver to a modem to transmit collected data directly from the field to your data centre.


The Cera-Diver comes with a 22mm diameter ceramic casing and is suitable for use in brackish and salt water, or other aggressive environments. 

  • Corrosion-proof
  • Various measurement methods
  • 30-Point pressure factory calibration
  • Event based, averaging and pumping tests sample methods to conserve memory
  • Suitable for cost effective frequent, long-term measuring

Special software is available for the Divers. Download via WeTransfer

Available variations

  • Range 10 metre, accuracy 0.05%/10m, resolution 0.06 cmH2O
  • Range 20 metre, accuracy 0.05%/20m, resolution 0.09 cmH2O
  • Range 50 metre, accuracy 0.05%/50m, resolution 0.19 cmH2O
  • Range 100 metre, accuracy 0.05%/100m, resolution 0.36 cmH2O


  • Geohydrological research
  • Water quantity research
  • Monitoring water quality
  • Long-term water level monitoring 
  • Groundwater monitoring projects


Battery life 8-10 years
Data storage capacity 48,000
Operating temperature 0℃ - 50℃
Casing material Zirconia (ZrO2)
Sample interval 0.5 seconds to 99 hours
Protection class IP68, 10 years continuously submerged in water at 100m
Weight 50 g
Sandra da Cruz Rodrigues

Get in touch with our specialists

Need advice choosing the right product for your application? Our specialist Sandra is happy to help.