Retencjapl sp. z o.o. is the Polish representative of the renowned company OTT Hydromet – a leading manufacturer of hydrological monitoring equipment. We provide devices for measuring the state, flow, and physicochemical parameters of surface and groundwater, as well as meteorological measuring devices, including rain gauges, disdrometers, and data recording devices.
Our offer

Rain Gauges and Disdrometers
Weighing, laser, and radar devices for professional applications
- OTT Pluvio²L Rain Gauge
- OTT Parsivel² Disdrometer
- Lufft WS100 Rain Gauge

Meteorological Parameter Sensors
Compact meteorological sensors for measurement stations
- Lufft WS series

Water Level Sensors
We offer devices using various measurement technologies, including hydrostatic, pneumatic, and radar-based systems
- OTT PLS 500 Hydrostatic Probe
- OTT CBS Pneumatic Level Sensor
- OTT RLS 500 Radar Level Sensor

All-in-One Water Level Recorders
Compact all-in-one systems for measuring water level, conductivity, and temperature
- OTT CTD Water Level, Temperature, and Conductivity Recorder
- OTT ecoLog1000 Water Level, Temperature, Conductivity, and Data Transmission Recorder

Hydrometric Current Meters for Flow Measurement
Reliable handheld devices
- OTT C2 Hydrometric Current Meter
- OTT C31 Hydrometric Current Meter
- OTT MF pro Electromagnetic Current Meter

Stationary Devices for Flow Measurement in Open Channels
Measurement systems for continuous water flow monitoring
- OTT SVR Radar Velocity Sensor

Multiparameter Water Quality Probes
Versatile solutions for monitoring the physicochemical parameters of water
- Hydrolab HL4 Probe
- Hydrolab HL7 Probe

Recorders for Meteorological and Hydrological Stations
Versatile devices for data recording and transmission
- OTT netDL 500 Data Recorder
- OTT netDL 1000 Data Recorder

Pre-configured Installation Kits
Stations consisting of selected OTT and Lufft devices
- RSO1 Radar Rainfall Station