Wireless Groundwater Sensors

for real-time ground water monitoring



TracWater's Groundwater Sensors are compact, simple and cost-effective. Sensors offer real-time monitoring, remote control, cloud management, mobile operation and anytime, anywhere functionality. Hosting a variety of built-in sensors for level, conductivity, pH, dissolved oxygen, turbidity, temperature and with many more on offer, ground water monitoring just got easy.

with TracWaters Groundwater Sensors you get.....

Quick set-up and Installation

IP68 connectors for a quick fit connection. Cellular/WiFi configuration using the cloud. Log data downloads and firmware updates.

Setup operation parameters, monitor system and calibrate sensor via TracWater provided software

Smart Functions

Bluetooth, cable-free operation and configuration.

Configurable, scheduled and automated alarm notifications. Logs periodically event alarm and transient levels. Provides battery operational forecasts and early warning of low battery to avoid breakdowns.

Real-time Monitoring

TracWater software enables automatic registration and synchronisation of devices so you can instantly start monitoring the ground water in your network from any of your devices through the online portals interactive easy to interpret statistical analysis, report generation and alert functions.


Groundwater is a keystone indicator of ecosystem health. TracWater's Information-As-A-Service provides accurate real-time wireless monitoring solutions. Now you can get instant visual displays of the groundwater quality within your desired water distribution network. The continuous uploading of sample data from the sensors to the TracWater portal, combined with the statistical analysis and report generation functions make it easy to identify any fluctuations occurring in the groundwater quality, help identify factors that may be contributing to fluctuations and receive immediate alerts if parameter readings spike above or below the default or pre-set value ranges.   



  • Aquifer Characterisation

  • Flood and Storm Water Monitoring

  • Construction and Mining

  • Drilling Wells and Bores

  • Estuaries and Rivers Monitoring

  • Lakes and Wetlands Monitoring

TracWater's Groundwater Sensors are easy to deploy “plug and play” devices used in conjunction with an award winning cloud-based water management system. Sensors are housed in a robust IP68 water submersible enclosure making it perfect monitoring in wells and bores, frequently flooded underground chambers, rivers, lakes, streams and harsh high temperature or humid environments.



Cloud-Enabled Wireless Groundwater Sensors

Accurate real-­time data upload with alarm/alert notifications


Ultra low power consumption, up to 5 years battery power with continuous operation 

Robust IP68 enclosure, continuous submersible to 10 m of water


Up to 100 °C operating temperature making it suitable for harsh climates​

Cellular, WiFi communication, no field data collection required

Auto delivery of incomplete uploads to ensure no data loss

0.01 sec auto detection and data logging of transient events

built-­in standard Modbus TCP

Directly uploads log files to TracWater servers

TracWater can push data to SCADA, BMS and other systems

TracWater SAS cloud based platform for configuration, operation, monitoring, alarm, control and data analysis



CPU: 32 bits

Memory: solid state, non-volatile flash, size: 16 MB ; rotating, no log or setting data loss after power failure

Real-time clock: crystal controlled calendar clock with leap year adjustment; accuracy: 5 seconds per month; NTP server auto time synchronisation, accuracy: 1~3 sec(NTP)

Environment & protection: IP68, continuous submersible to 10 meters of water; operating temperature: -40~85 °C, -40~100 °C (optional); operating humidity: 0 ~100 % RH

Safety: CE, FCC

Port 0: System configuration, diagnosis and data upload/download

Interface: RS485, 115,200 bps, 8 bits, no parity, 1 stop bit

Surge protection: 4,000 V DC

Protocol: Modbus RTU Housing SS316 or Titanium (optional)

Dimensions: approx. Φ48x145(H) mm (TWGW1); Φ20x240(H) (TWGW2~4)

Weight: 600 g (TWGW1); 450 g (TWGW2~4) Cable

Material: PVC, PUR, PTFE(Tefon), resists corrosion and provides strength

Type: vented or non-vented Kelvar reinforced to ensure long lasting operation

Port1 : Level, Conductivity, pH, ORP, Dissolved Oxygen, Turbidity, Temperature and Barometer Sensors (TWGW2~7)


Measurement range: 0~10/50/100/200 m

Accuracy: ± 0.1% FS; ± 0.05% FS (optional)

Resolution: 1 mm

Repeatability: ±0.025% FS

Stability (annual): 0.1% FS

Over pressure: 3 times measurement range Conductivity

Measurement range: 0~500 ms/cm

Accuracy: ±0.5% of reading or ±1 μs/cm

Resolution: 0.1 μs/cm

Repeatability: ±1% FS pH

Measurement range: 0~14 pH

Accuracy: ±1% FS or ±0.1 pH

Resolution: 0.01 pH

Repeatability: ±0.02 pH


Measurement range: -1,000 mV~1,000 mV

Accuracy: ±1 mV

Resolution: ±0.1 mV

Repeatability: ±0.5 mV Dissolved Oxygen

Measurement range: 0~20 ppm (mg/L) (0~200 %)

Accuracy: ±1% FS

Resolution: 0.01 ppm

Repeatability: ±0.5% FS


Measurement rang: 0~4,000 NTU

Accuracy: ± 3% FS (0~1,000 NTU), ± 5% FS (1,000~4,000 NTU)

Resolution: 0.01NTU

Repeatability: ±1.5% FS Temperature

Type: Pt100

Measurement range: -40~85°C; -40~100°C (optional)

Accuracy: ±0.1°C

Resolution: 0.01°C

Repeatability: ±1% FS Barometer

Measurement rang: 0~2 Kgf/cm2 (absolute pressure)

Accuracy: ± 0.1% FS

Resolution: 0.01% FS

Repeatability: ±0.025% FS

Stability (annual): ±0.1% FS

Main Unit General


GPRS Module

Standard: GSM/GPRS

Frequency: 850/900/1,800/1,900 MHz

Antenna: 1 dBi

SIM Card: Micro SIM (12x15 mm)

Protocol: Proprietary or Modbus TCP WiFi Module

Standard: IEEE 802.11b

Data rate: Up to 11 M bps

Frequency: 2.412~2.497 Ghz

Supported topologies: Star

Max. transmitter power output: 18 dbm

Receive sensitivity: -83~-92 dBm

Antenna: 2 dBi

Security: WPA/WPA2

Protocol: Proprietary or Modbus TCP

CDMA Module

Standard: CDMA/CDMA 2,000

Frequency: 800/1,900 MHz

Antenna: 1dBi

Protocol: Proprietary or Modbus TCP

3G Module

Standard: UMTS/HSPA+/AWS

Frequency: 800/850/1,700/1,900/2,100 MHz

Antenna: 3 dBi

SIM Card: Micro SIM (12x15 mm)

Protocol: Proprietary or Modbus TCP

4G Module

Standard: LTE

Frequency: 800/850/900/1,800/2,100/2,600 MHz

Antenna: 1 dBi (internal; 2 dBi(external)

SIM Card: Micro SIM (12x15 mm)

Protocol: Proprietary or Modbus TCP Ethernet Module

Data rate: 10/100 Mbps

Isolation: 1500 V DC

Protocol: Proprietary or Modbus TCP

TracWater Intelligent Digital Sensors and I/O Modules Pressure, differential pressure, level, free chlorine, PH, ORP, temperature, conductivity, dissolved oxygen, turbidity, salinity, suspended solid, ammonium, humidity, differential pressure, barometer, analog input, counter input, digital input, vibration

Power Supply


Voltage: 5 V DC ±10%, 1 A

Surge protection: 4,000 V DC 

ESD line protection:15 KV DC

Internal Battery

Non-rechargeable 3.6 V DC 11.6 AH lithium cell

Life: 10 years

Internal Battery (Option)

Rechargeable 3.6 V DC 5 AH lithium cell

Life: minimum 300 charge/discharge cycles

Internal Battery (Option)

Non-rechargeable 3.6 V DC 2.6 AH lithium cell

Life: 10 years Internal Battery (Option)

Non-rechargeable 3.6 V DC 15 AH lithium cell

Life: minimum 300 charge/discharge cycles External

Battery (Option)

Rechargeable 3.6 V DC 60 AH lithium cell

Life: minimum 300 charge/discharge cycles

Dimension: 200(W)x200(H)x130(D)mm

Weight: approx. 2.2 kg

Communication: data transmission; SMS alarm notification; data upload/ download (interval: 5 secs~24 hours); store and forward; FTP

Log: 2000,000 records, rotating store; periodical; alarm

Alarm: HH, H, L, LL; alarm action: SMS, alarm log


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