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Soil Moisture, Data Logging, Meteorology and Plant Science

Delta-T Devices Data Loggers - at a Glance

 DL2e Data Logger DL6 Data Logger GP1 Data Logger


  Differential analog
Additional input channels Nominal analogue range Number of readings
Relay out

PR2 Profile Probe connection*
GP1 2 2 Temperature
2 Digital counters
1 x WET
0 - 2.5V >600K 1 N/A
DL6 6 1 Temperature
1 Counter
0 - 1.15V 16K 1 1
DL2e 15 - 62 All channels are versatile e.g. DC/AC voltage, pulse, counter, frequency

±4mV to ±2V auto-ranging (up to ±50V option)

128K 2 10 x PR2/6
GP2 12 4 Digital counters - 2 fast & 2 slow
1 x Delta-T WET Sensor Channel

170 mV to 2.7V
1.4V to ±1.5V
± 185mV
± 23mV

(with optional auto ranging)

up to 2500K

2 Standard

2 x PR2/6** or
3 x PR2/4**

** with appropriate lid.
6 with Relay Expansion Module

* PR2 connection dependent on other sensors connected.

25 Year's Experience

Delta-T Devices has produced high quality data loggers for over 25 years. Over that time we have built up a wealth of experience in the design of accurate, reliable, low-powered, weatherproof loggers. Delta-T Devices data loggers are versatile and cover applications across scientific research, environmental monitoring and manufacturing.

• Data loggers for all environments, applications and budgets
• Long term unattended monitoring
• Intelligent control and scripting functions
• Simple or complex logging

Many customers are looking for a complete solution including a data logger, sensors, power supply, GSM modem, cables, mountings and an enclosure. Delta-T Devices has the ability to build simple or complex systems tailored to the customer's requirements.

Delta-T Devices data loggers are rugged, reliable, accurate and easy to use; their well designed software and hardware makes configuration, connection and data collection simple. They are supplied complete with configuration and data collection software at no extra cost, and upgrades are available for download free of charge. You will find models ranging from high specification scientific loggers, through to dedicated soil moisture loggers and compact loggers with impressive control capabilities.

For further information, please use links below view individual product pages or product literature



Brief - Soil

Brief summary Soil Products

Detailed - Soil & Loggers



Summary - Entire range



Data Loggers
GP2  Advanced Data Logger and Controller

  • Powerful and rugged field data logger

  • 12 differential (or 24 single ended) channels

  • Ideal for demanding research applications

  • Free use of DeltaLINK-Cloud data sharing service

The GP2 is a powerful 12 channel data logger that is easy to use, versatile, rugged and reliable. It can log most sensor types and accepts voltage, resistance, current, potentiometer, bridge, counter, frequency, and digital state inputs.

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DL2e  Data Logger

  • Battery powered, weatherproof, rugged and portable

  • Expandable by the user to meet changing needs

  • Easy programming with Ls2Win Software

The DL2e Data Logger is a versatile data logger, well suited to remote site and laboratory applications. The DL2e system is easy to use and supports a wide choice of sensors, data logging intervals, data collection and analysis facilities.

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DL6  Soil Moisture Data Logger

  • Ideal for Profile Probes, ThetaProbes, SM150 Sensors, and SM300 sensors

  • 8 channel logger with weather-proof case and battery power

  • Free use of DeltaLINK-Cloud data sharing service

The DL6 is a dedicated data logger optimised for use with Delta-T soil moisture sensors. It can be used with combinations of ThetaProbes, SM150 Soil Moisture Sensors, SM300 Soil Moisture Sensors and Profile Probes, and also accepts rain gauge and soil temperature probe inputs. Up to 16000 readings can be stored in memory.

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GP1  General Purpose Data Logger

  • High accuracy 7 channel data logger

  • 600,000 readings

  • Free use of DeltaLINK-Cloud data sharing service

  • Smart relay control

The GP1 Data Logger is a complete logging solution housed in a waterproof IP67 enclosure with battery power. The internal memory can hold >600,000 readings - more than enough for one year's operation (typical).

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