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Sensors & adapters

SDI-12 V1.3 family: piezoresistive and ceramic pressure sensors, frequency/pulse counters, Modbus converters and multiparameter probes, all on the same compatible platform.

Water level

Pressure sensors for stage and groundwater

Submersible probes for gauge wells, groundwater, reservoirs and wastewater plants — on the shared SDI-12 V1.3 platform with Bluetooth 5 and <10 µA quiescent current.

Piezoresistive pressure sensor Type 0312: stainless 316 Ti submersible probe with black protective cap, SDI-12 V1.3 platform, 1″ diameter, vented cable
Type 0312

Piezoresistive pressure sensor

Submersible probe in stainless steel 316 Ti, pressure diaphragm in stainless steel or titanium (for saline waters). Ranges 5, 10, 20, 30 and 100 m H₂O, ±0.15 % FS.

  • 3-axis orientation sensor
  • Gauge or absolute pressure
  • Integrated diaphragm temperature ±0.1 °C (for pressure compensation)
Datasheet474 KBUser Manual420 KBQuick Installation Guide640 KB
Ceramic pressure sensor Type 0420 with Huba 713 diaphragm
Type 0420 · Huba 713

Ceramic pressure sensor

Rugged submersible probe with ceramic pressure diaphragm, resistant to aggressive media. Excellent long-term stability.

  • 0–1 bar (≈ 10 m H₂O)
  • 10 m cable with capillary
  • Pressure + temperature
Datasheet249 KBUser Manual255 KB
Water quality

Multiparameter and single-parameter probes

pH, oxygen, conductivity, turbidity, nitrate and more — all connected directly to the Aquatos Web LTX via SDI-12 or Modbus.

Multi-parameter probe: pH, oxygen, conductivity, turbidity in one body
Multi-parameter

Water-quality sensors

pH, dissolved oxygen, conductivity, turbidity, nitrate, ammonium, phosphate, ORP, free chlorine, salinity. Pressure transducers, radar level, multi-parameter sondes.

  • Calibration-grade for WFD compliance
  • Integration into chains and buoys
  • SDI-12 or Modbus
Conductivity, temperature and pressure in a single V4A stainless steel probe. Slim form factor for 2

CTD probe

Conductivity, temperature and pressure in a single V4A stainless steel probe. Slim form factor for 2" gauge tubes.

Conductivity and temperature probe for groundwater and surface water. Includes protective caps for transport and cleaning.

ES-2 conductivity

Conductivity and temperature probe for groundwater and surface water. Includes protective caps for transport and cleaning.

Other

Adapters and platform

Tipping-bucket and pulse-counter adapters, Modbus converter and the shared hardware platform across all TerraTransfer sensors.

Frequency/pulse counter Type 0330, compact adapter with M8 connector and lead cable
Type 0330

Frequency / pulse counter

Rainfall adapter for tipping-bucket gauges and water-meter adapter with pulse output. Up to 9,999,999 counts, up to 1,000 Hz.

  • Configurable coefficients
  • Delta computation (intensity)
  • 2.8–16 V supply
Type 0210

Modbus converter

Bridges Modbus sensors (RS485) to the SDI-12 bus. Up to 10 Modbus registers per converter. Dynamic power supply, Modbus only powered when needed.

  • Standard 9600 8N1
  • Setup via QR code or Bluetooth app
  • Ideal for battery-powered IoT
Platform

SDI-12 platform

Hardware and firmware platform for all TerraTransfer sensors. Compatible with extended sensor networks.

In the field

Sensor family, from pressure to water quality

Click any image to enlarge.

Piezoresistive sensor Type 0312: stainless 316 Ti submersible probe, ±0.15 % FS accuracy, ranges from 5 to 100 mWC.
Piezoresistive sensor Type 0312: stainless 316 Ti submersible probe, ±0.15 % FS accuracy, ranges from 5 to 100 mWC.
Ceramic pressure sensor Type 0420 (Huba 713): ceramic diaphragm, suited for aggressive media and long-term stable wastewater applications.
Ceramic pressure sensor Type 0420 (Huba 713): ceramic diaphragm, suited for aggressive media and long-term stable wastewater applications.
Frequency / pulse counter Type 0330: for tipping-bucket rain gauges and water meters with pulse output. Up to 9,999,999 pulses, up to 1,000 Hz.
Frequency / pulse counter Type 0330: for tipping-bucket rain gauges and water meters with pulse output. Up to 9,999,999 pulses, up to 1,000 Hz.
Radar gauge sensor: contactless water-level measurement, Modbus link to the Aquatos Web LTX. Suited for flowing and fluctuating waters with high sediment loads.
Radar gauge sensor: contactless water-level measurement, Modbus link to the Aquatos Web LTX. Suited for flowing and fluctuating waters with high sediment loads.
Multiparameter probe: pH, oxygen, conductivity and turbidity in a single body, one borehole, multiple parameters, one service cycle.
Multiparameter probe: pH, oxygen, conductivity and turbidity in a single body, one borehole, multiple parameters, one service cycle.
Optical oxygen sensor: luminophore method, no electrolyte or membrane swaps, low-maintenance over several years.
Optical oxygen sensor: luminophore method, no electrolyte or membrane swaps, low-maintenance over several years.
Redox / ORP electrode: glass-body construction for wastewater and drinking-water monitoring. Connection via SDI-12 or Modbus.
Redox / ORP electrode: glass-body construction for wastewater and drinking-water monitoring. Connection via SDI-12 or Modbus.
Other products

Other products.

Aquatos Web LTXFlagship data logger with LTE-M cellular and 24 SDI-12 channels. Fully programmable, TLS-encrypted… Aquatos miniCompact Bluetooth data logger for groundwater and stage-level measurements. Local read-out in the fi… Aquatos nanoAll-in-one 1-inch submersible, sensor, logger and BLE radio in a single stainless housing. Pressure… Measuring buoysRugged stainless-steel floats for lakes, reservoirs, harbours and rivers, standard buoy and shallow… Thermistor chainsThermistor chains for temperature profiles, up to 30 nodes, 200 m cable, ±0.1 °C accuracy. Climate stationsCustom-configured climate stations with autonomous solar/battery power. LTE-M or optionally satellit…

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