Relative pressure and temperature sensor
Water level sensor for groundwater data monitoringCNRT sensor Integrated the atmospheric pressure aerator

Relative pressure sensors & temperature CNRT

  • Double output signal, level and temperature
  • Measuring range of level 5, 10, 20 mH2O
  • Temperature measuring range of 0°C…60℃
  • Quick connection by connector M12 8Pts to data loggers LOGV4 by 4-20 mA
  • Battery powered logger, low power consumption, autonomy > 5 years
  • Rugged and compact
  • Integrated atmospheric pressure aerator
  • Wireless configuration by short range radio
  • Communication (depending on the logger model) : radio / GSM / GPRS / 2G / 4G
  • IP68 housing protection

Pressure level sensors also providing temperature (Pt1000). Easy to install with their 4-20mA output, and M12 8PTS connectors to the LOG V4 dataloggers. Data retrieval is done by radio on-site, or remotely by GSM/GPRS for compatible loggers.

CNRT Level sensors with temperature and battery powered data logger LOG09V4

Data logger LOG09V4

Logger 500 000 measures
Data access point Yes using radio / Modbus or cellular data transfer
Inputs 1x voltage input (5V…30V), 1x Modbus input (if not already used as an output), 2x 4-20 mA,
Outputs Radio HF (868 or 915 MHz),
2G/4G (LTE-M / NB-IoT)
1x power supply output (5V…18V), 1x open drain output, 1x Modbus output (if not already used as an intput)
Radio communication 100M open field (Wiji protocol)
Antenna : radio / cellular Internal or external radio antenna – External for cellular antenna. See configurator for options
Temperature range
-40 …85°C
Housing PA12
Sealing grade IP67
Lithium Bat : 3,6V 34Ah
Configuration kit PN : MOC00001 (868 MHz) or MOC00002 (915 MHz)
Both integrate the software AVELOUR 7 for the configuration and data analysis
Net weight




Dimensions LOG09V4
Compatible Loggers LOG03V4 : 4-20mA – Digital
LOG09V4 : 4-20mA – Modbus RS485


Level & temperature probes – CNRT series

Measuring range of
5, 10, 20 mH2O
Pressure type Relative
Measuring range of
Overpressure 1,5 x FS
Accuracy ±0.5% full scale (Level)
±2℃ (temperature)
Output signal
Supply voltage
4 ~ 20 mA (level and temperature)
Min 12 – Max 30 VDC
Operating Temperature Normal : -10 … 70°C
Maxi : -20… 85°C (Storage)
Stability ±0.2% full scale/year/td>
Zero thermal drift ±0.02% full scale/℃
Housing Diaphragm : stainless steel 316L
Body : stainless steel 1Cr18Ni9Ti
Cable : Polyethylene
Dimensions Probe : Ø26 x 124mm
Cable : Ø7.2mm
Atmospheric pressure aerator : Ø28MM- LG80MM E/S in M16x1.5 and M20x1.5
Net weight 904g


CNRT probe

Dimensions CNRT Level & Temperature probe


CNRT Level sensors documentation





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