dataTaker DT90N

  • Easy to deploy using a USB interface for configuration and commissioning
  • 3 Digital inputs for pulse counting
  • SDI-12 and MODBUS Serial sensor support
  • Rechargeable lithium-ion battery: Up to 300 days run
  • IP67 Rated rugged aluminum case and waterproof cables



The DT90N is a compact, all-in-one data logging system with an integrated modem, specifically designed for remote applications. The rugged design and wide operating temperature range provide reliable operation in virtually any environment. These are low-power and cost-effective data loggers with a dedicated mounting handle for a simple and quick installation process.

Data retrieval and device configuration of the DT90N are available via the USB interface for on-site communication. You can also use the automatic data delivery feature to send logged data to an FTP server at regular intervals. Alarm configurations can trigger SMS messages to multiple mobile phones

DT90 programming software can easily take you through the setup of your logger and how you want the system to work, customized for you.


    Hydrology: Monitoring surface and groundwater conditions, the occurrence and movement of water, the physical and chemical properties of water, etc.

Meteorology: Monitoring changes of atmospheric conditions to forecast weather and the presence of air pollutants

Industrial: Monitor and control process parameters from temperature profiling to design validation

DT90N Features:

  • Ease of deployment: Simple and connectivity via USB on-site makes it easy to configure and test the deployed monitoring module
  • Universal: Connects to any sensor. This universal logger can connect to any type of sensor. Analog*: voltage, current, RTD; Digital: SDI-12, MODBUS, pulses
  • Rechargeable lithium-ion battery: Up to 300 days run time on one charge and the ability to connect directly to solar power, making this logger the best solution for your remote monitoring applications
  • Robust: With its solid aluminum case and fully waterproof probe (IP68 rated), this logger is suitable for harsh environments
  • Cost-effective: Low maintenance product. Minimal attention needed after setup

Need more channels? The DT90 Series also includes the DT90L which offers 8 analog input channels in addition to the 3 digital inputs of the DT90N.


Analog Channels
Number: 8 dedicated analog channels
Effective Resolution: 16 Bit
Voltage Inputs: Range: 0-50 mv; 0-2.5 V
Number: 8 – Connectors A1, A2, A3 and A4
Current Inputs
Range: 0-20 mA; 4-20 mA
Number: 4 – Connectors A1 and A2
RTD Inputs
Type: Pt100
Number: 4 – Connectors A3 and A4
Digital Channels
Inputs: 3 dedicated counter channels.
Connector: D1
Sensor Excitation (Supply)
12V/ 5V regulated supply for powering sensors & accessories
Connector A1, A2 and D1 up to 200 mA total
Serial Inputs
SDI-12 1 SDI-12 input on connector D2, support up to 2 sensors.
Each sensor can have 32 values on 3 SDI12 measurements.
Modbus Client (master) 1 serial (RS485) port dedicated with Modbus client protocol, support up to 10 sensors in block read
Available on connector D2
Baud rate: 600 to 115,200
Data Processing
Alarms Condition: high and low threshold
Number of conditions: 3
Actions: send SMS, increase/ decrease sampling or transmission rate
Scheduling of Data Acquisition: Can read up to 26 channels with individual schedule rate from 1 minute to 24 hours.
Data Storage
Internal Store Capacity: 16MB (minimum 500,000 data points)
Power Supply External voltage: 5 to 25 Vdc, 9 V or 12 V solar panel
Internal battery: Rechargeable Li-ion 3.7 Vdc 48 Wh, Service life: approx. 5-10 years,Charging cycles: approx. 1000-2000 for a 100-90% battery discharge cycle
Integrated Cellular Modem
Alarms: Send SMS messages
Data: Send data to an FTP server
SIM interface: SIM Socket (1.8V/3V)
Networks: LTE FDD: Band 1/3/5/7/8/20/28, LTE TDD: Band 38/40, WCDMA: Band 1/5/8, GSM/GPRS/EDGE: 850/900/1800MHz
Physical and Environment
Construction: Black anodized aluminum cast case.
Dimensions: 180 x 100 x 80 mm (excluding plug and antenna)
Weight: 1.25 kg
Temperature range: –40°C to 70°C
Humidity: 0-100% RH, when lid is closed
Protection rating: IP67
Accessories Included
Resource USB drive includes software and user manual.
USB Communication cable
Set of 6 sensor (connector) cables


DT90 configuration software is an intuitive graphical interface that allows you to configure your data logger, view real-time data in charts, and retrieve your historical data for analysis. This application runs directly from your PC and can be accessed via USB.

Features include:

  • Simple Interface for programming
  • Easy alarm setup
  • USB connection
  • Ability to download historical data
  • Display data in chart or table
  • Export data into a CSV file
  • Firmware upgrade interface



DT90L Manual (PDF)


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