Water Monitoring
ND-PR36CTD Pressure, Level, Temperature & EC Sensor
What is the ND-PR36CTD? The ND-PR36CTD is a high-precision multi-parameter probe combining piezoresistive pressure (water level), temperature and electrical conductivity in a single down-hole-ready package. With 0.1 % full-scale total error and ±0.1 °C temperature accuracy, it is the reference choice for groundwater wells, boreholes, tank level/quality, surface water and salinity monitoring connected to the yDoc ML-525 datalogger.
The ND-PR36CTD is a high-precision multi-parameter probe combining piezoresistive pressure (water level), temperature and electrical conductivity in a single down-hole-ready package. With 0.1 % full-scale total error and ±0.1 °C temperature accuracy, it is the reference choice for groundwater wells, boreholes, tank level/quality, surface water and salinity monitoring connected to the yDoc ML-525 datalogger.
Key parameters
What the ND-PR36CTD measures
Pressure / level
Piezoresistive, 0–1 bar relative (other ranges on request)
Temperature
–40 to +125 °C, max ±0.1 °C accuracy
Electrical conductivity
0–20 mS/cm, max ±2.5 % FS accuracy
Direct integration
10 m cable to the yDoc ML-525 over SDI-12
Specifications
Technical specifications
Applications
Where the ND-PR36CTD is used
Tank level & quality
Combined level and water-quality monitoring of process and storage tanks for liquids.
Boreholes
High-precision pressure/level for hydrogeological studies and groundwater management.
Groundwater & wells
Long-term groundwater table and quality records, even in saline aquifers.
Surface water
Open-channel and stream level/quality monitoring for hydrology and ecology.
Salinity & chloride
Conductivity-based salinity monitoring in coastal aquifers, irrigation drainage and brackish water.
Integration
Powered by the yDoc ML-525 datalogger
The ND-PR36CTD connects directly to the yDoc ML-525 datalogger. The yDoc powers the sensor, schedules measurements, stores readings locally and transmits them to the Sensor-Online platform via 4G/LTE-M, NB-IoT, LoRaWAN, satellite or Ethernet — with up to 10 years of battery life.
More in this category
Related water monitoring sensors
Optical Dissolved Oxygen & Temperature Sensor
Optical dissolved oxygen sensor without membrane or electrolyte. The optical method delivers minimal calibration drift a…
pH, ORP & Temperature Sensor
Industrial pH, ORP and temperature probe for long-term monitoring of surface water and process water. Robust glass elect…
Optical Turbidity & Temperature Sensor
ISO 7027 optical turbidity meter for drinking water, surface water and wastewater. Self-cleaning brush option keeps the …
FAQ
Frequently asked questions about the ND-PR36CTD
What does the ND-PR36CTD measure?+
Suitable for groundwater wells?+
What cable lengths are available?+
Ready to deploy the ND-PR36CTD?
Get a quote, technical advice, or a complete bundle with the yDoc ML-525 datalogger and Sensor-Online platform subscription.