Implexx LT-1T-SDI12 Leaf temperature sensor
Implexx LT-1T-SDI12 Leaf temperature sensor
The Leaf Temperature Sensor is a sub-miniature touch probe that measures absolute temperature of a leaf.
The lightweight stainless steel wire clip holds a high precision glass encapsulated thermistor, which is about millimeter in diameter. Small size of the probe and its special design provide almost negligible disturbance of the natural leaf temperature.
The thermistor is typically positioned on the underside of the leaf blade where it comes into equilibrium with the leaf's temperature. As the leaf transpires, through stomatal conductance or the loss of water vapour through tiny pores (stomata) on the leaf, the temperature of the leaf will be lower than ambient air temperature. Plants under low irrigation or drought stress will have a leaf temperature closer, or higher, than ambient air temperature.
The thermistor is connected to the clip by a thin 0.15 mm leads to minimize heat conduction and response time. All conductors are proofed to avoid corrosion under the wet operating conditions.
Every sensor is tuned and calibrated within the measurement range. The tolerance range is ±0.08 ℃ only.