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Enabling better global research outcomes in soil, plant & environmental monitoring.


For the measurement of absolute temperature of the leaf at the surface.

The Leaf Temperature Sensor is a very small thermistor that can be adhered to a leaf surface. The absolute temperature of the leaf at the surface is measured.
The adherence and small size enable accurate measurement. The adherence means that the boundary layer is not disrupted.

The THERM-MICRO’s small size means that it has almost no thermal mass, resulting in minimal influence on the temperature environment and measurements which are very responsive to leaf temperature changes.

THERM-MICRO Temperature Sensor Features

  • ±0.2°C Tolerance from 0°C to +70°C
  • Rapid Time Response (200 milliseconds)
  • Temperature Range -40°C to +125°C
Optimal data logging solution:  TSM2 Temperature Sensor Meter
TSM2 Features:
  • Stand-alone data logging
  • MicroSD expandable memory
  • 4GB MicroSD Storage Card (capacity: 10+ years data storage)
  • Wireless connectivity and data transfer
  • Simple conversion and scripting
  • Flexible sensor calibration, look-up tables, and user scripts
  • 24-Bit resolution
  • IP65 rated water proof enclosure
  • Free Windows utility configuration software

Power management:

  • Field: direct connected solar panel
  • Lab: mains DC power supply
  • Internal Lithium-Polymer battery
  • Internal Lithium-Polymer battery charger and power management


Utilising the SQ-110 Sensor in a custom IoT (Internet of Things) package

The SNiP-LFT is a ‘Sensor Node Integrated Package’ for LoRaWAN communication of real-time absolute measurements of Leaf Temperature, for continuous plant, light and environmental monitoring.

The base SNiP-LFT integrates an AD-NODE and 1 THERM-MICRO Sensor to a site’s unique network, communication and power requirements.


  • Transpiration Studies
  • Photosynthesis Rates
  • Leaf Energy Balance Studies
  • Viticulture – Leaf & Bunch Disease
  • Bud Dormancy and Floral Initiation
  • Nitrogen Fixation and Root Temperature
  • Ecology Studies
Response Time: 200 milliseconds
Temperature Range: -40°C to +125°C
Cable: 5m, UV stabilised, black in colour, bare wire connections (2 conductors)
Resistance: 10kΩ @ 25°C
Tolerance: ±0.2°C Tolerance from 0°C to +70°C


Thermistor Bead: 0.3mm x 3mm
Exposed lead length: approx. 75mm
Weatherproof cable termination (sensor end): 55mm
  • TSM2 Temperature Sensor Meter
    Temperature Sensor Meter - Configured for ICT leaf temperature sensors. 9 sensor capacity; IP65 rated enclosure; stand-alone logging capability to 4GB MicroSD Card; Windows and Mac software; breakout box; user manual.