Temperature broad leaf and conifer needle (LAT-B2 / LAT-C1)

Leaf-to-Air-Temperature sensors (LAT) are used for direct, continuous and high-precision temperature measurements. The measured temperature parameters include absolute temperatures of the leaf surface, leaf-surrounding ambient air (Tair), and the temperature difference between leaf surface and ambient air (ΔTleaf-to-air). These devices are suitable for long-term application in outdoor conditions. Due to their extremely low power consumption, Ecomatik LAT sensors are ideal for battery-powered solutions, e.g., in IoT applications.

LAT-B2: Leaf-to-Air Temperature Broadleaf Type

The LAT-B2’s ultra-light carbon frame is mounted on a leaf and simultaneously measures absolute leaf temperature (Tleaf) and air temperature (Tair) using two high-precision micro-thermistor probes. Both probes are individually matched to each other and thus ensure maximum precision when determining the difference between leaf and air temperature (ΔTleaf-to-air).

LAT-C1: Leaf-to-Air Temperature Conifer Type

The lightweight LAT-C1 sensors are attached directly to the needles. A thin thermopile measures the average temperature difference between the surface of 10 needles and the surrounding ambient air (ΔTleaf-to-air). An additional micro-thermistor measures absolute temperature of the surrounding ambient air (Tair). Absolute needle temperature (Tleaf) is inferred from the two measured values.


  • Direct, continuous and highly accurate measurement of blade temperature (Tleaf), air temperature (Tair), and leaf-air temperature difference (ΔTleaf-to-air)
  • Small, lightweight and flexible sensors to minimize loading on and damage to the measurement object
  • Easy installation
  • Maximum stability against wind and rain; specifically designed for field conditions
  • Customizable production possible, e.g. for specific leaf/needle size
  • Extremely low power consumption, suitable for IoT application

Specific to the Lat-B2 model

  • Sensor signal in mV, measurable with most common data loggers

Specific to the LAT-C model

  • 10 measuring points for 10 needles provide a spatially integrative temperature signal


  • Not suitable for leaves smaller than 2 x 2 cm (LAT-B2), or needles shorter than 3 mm (LAT-C1)

Specific to the LAT-C1 model

  • Two different output signals: a thermopile between ± 10 mV and a micro-thermistor probes with an analogue output signal between 0V and supply voltage (VEX).


Technical data sheets

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Accessories & Compatible Products

Compatible sensors and peripherals:

Our open and modular system is highly flexible and easy to expand in stages. In this case, virtually all sensors or other peripheral devices (such as a webcam) can be integrated.

Ecomatik sensors include:

  • Dendrometers
  • Sap flow sensors
  • Temperature sensors
  • Leaf sensors
  • Humidity and air temperature sensor
  • Soil moisture sensors
  • And many more…


You need a quotation, have questions about a product, or need extensive technical advice in the context of your project planning. Starting with an initial determination of your needs, through the detailed planning of the required measurement equipment and data transmission technology, up to professional implementation on site, we are at your disposal at any time with advice and action.

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General information on order processing

Thank you for your interest in our products and services! Here you will find important information about the ordering process:

To our international customers: Please note, we ship worldwide! If we do not currently have a listed distributor in your country (a list can be found here) , please feel free to contact us directly.

Assessment of your needs

With your consideration and input, we determine which of our products best meet your needs. We are also happy to design fully-integrated measuring stations (plant, climate, soil sensors), including an independent power supply and mobile data transmission, depending on your requirements.

Are you already familiar with our products and know exactly what you need?

Perfect, then just write us an email! In your order, please state the diameter of your measuring objects in addition to the required cable lengths.

Do you require our assistance before placing an order?

We’re happy to help! So that we can provide you with accurate and helpful advice, please first fill out the above online form with your request and send it our way. We will then immediately review your details and contact you.

Like so many things, everything started with an idea ...

In the case of the plant scientist and founder of ECOMATIK, Dr. Liu, it was the idea that modern measurement technology should enable crucial plant physiological parameters to be measured directly, precisely and with high temporal resolution on the plant itself. It was obvious to him that there is an information potential of immense value in the detailed understanding of immediate reactions of plants to their environment...