Designed as a robust multiparameter device, the type 575-MP1 Datalogger measures and records water level, temperature, electrical conductivity, pH and optionally ORP (Oxidation- Reduction Potential). Precise sensors are used which are installed in a stainless-steel housing. The design is ideal for long-term use in groundwater wells and in surface water.

The water level measurement is done in the proven relative pressure measuring method, desiccants are not needed. To measure the electrical conductivity, a 4-pole sensor is used, which is characterized in particular by the enormous long-term stability. For the pH measurement, an electrode with an integrated temperature sensor is used; the longevity is particularly estimable. If required, the pH electrode can be exchanged by the user with a screw plug.

The operating concept is simple and based on our operating program, which is also designed for touch operation. Additionally, this Multiparameter Datalogger can also be completely configured with a Pocket PC for most comfortable operation in the field.

The Datalogger type 575-MP1 has a built-in battery which has a lifetime of min. 10 years with 3 million measurements before it can be replaced at the factory.

Technical Data

Water Level

Measuring range

selectable up to max. 100m water column


Standard: 1 cm / Option: 1 mm


< 0.05% of selected measuring range


Measuring range

-5°C to +50 °C / Option: -5°C to +70°C (ice-free area)


< 0.1°C




Measuring range

0 ... 200,000 µS/cm


< 0.5 % of current value, min. 2 µS/cm;


4-pole graphite electrode


Measuring range

0...14 pH


<0.02 pH


0.01 pH

Device data


Flash memory 4MB, non-volatile, for min. 180,000 records

Measuring interval

Adjustable: 1 minute to 99 days / Optional: from 1 second, up to 10 intervals preselectable

Length of cable

individually selectable up to max. 500 m

User interface

RS 232; can be addressed via serial and USB interface

Dimensions Probe

Ø48mm x 395mm

Dimensions converter unit

Ø24mm x 140mm

Operating temperature

-30°C to +70°C / probe in ice-free area

File format

User selectable; ASCII; Excel; ZRXP; MIS; Labdüs and many more
Individual formats configurable by adapting from our software department;


  • Maintenance free - no desiccant / dry cartridges required
  • Compact design with Ø 48mm for installation in observation wells from 2 inch
  • High precision pressure sensor for relative pressure measurements
  • Conductivity sensor stable over years, no re-calibration necessary
  • pH sensor has excellent longevity and precision
  • Check measurements by a Water Level Meter are possible without conversion or removal from 2-inch wells
  • Power supply for 10 years operation and 3,000,000 measurements
  • Robust design, made of high quality stainless steel for long-term use


  • Measure and record water level, temperature, conductivity, pH and ORP during pumping tests
  • Well monitoring
  • Level and quality measurement of surface waters
  • For remediation of contaminated sites
  • Monitoring of landfills
  • For monitoring of construction sites
  • Level and quality monitoring of shallow wells