Datalogger for Digital Sensors

The ESDL-30 data logger is designed to log data from any sensor with an SDI-12 digital interface. It can be programmed to measure from 5 seconds to 168 hours in a linear mode. All the measured data is stored together with the current date, time and battery voltage, in the internal non-volatile memory of the data logger.


The ESDL-30 is a rugged data logger that operates in a wide temperature range, reliable in a stand-alone operation, power efficient and great compatibility with numerous telecommunication options. The data logger can perform a variety of measurement and control applications with accuracy and reliability.

Input Sensor with SDI-12 signal interface
Scan/upload interval 5 seconds to 168 hours
Memory capacity Flash Memory (64-MB); 2 Million data points.
Data output format CSV text file. Can be easily imported in many third party applications like Microsoft Excel.
Communication port RS-232 (Standard) 115 kbps
Temp. measurement range -20° to +70°C with 0.1°C resolution.
Operating temperature range -30° to +70°C
Humidity 100 %
Power supply 2 x D size 3.6 V/19 Ah Lithium cells, or
2 x D size 1.5 V Alkaline high power cells, or
12V SMF battery chargeable from AC mains or solar panel
Communication port RS-232 (Standard) 115 kbps
Housing Corrosion resistant weather proof enclosure
Antenna(in telemetry option) Built-in or separately mounted antenna.
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Equipment Rental

GDS has a variety of instruments for hire, these Instruments, Readouts and Dataloggers are available for product hire on a short-term (fortnightly) or long-term (monthly) basis including, but not limited to, the following:

  • Load cells
  • Tilt meters
  • Manual Readout units
  • Dataloggers
  • Tiltmeters
  • Inclinometers