Temperature is quite simple. He’s using a TMP36 sensor which is held a few inches above the soil. The moisture sensor is of his own design. It uses two building screws embedded in foam.

More key features of the Soil Moisture Sensor include: Safe and durable in a variety of soils and both hot and freezing temperatures Measure within a range of 0 to 240 centibar (cb) or kilopascal ...

This simple gadget takes the guesswork out of keeping my raised garden beds perfectly watered all season long.

EGBERT J.A. SPAANS, JOHN M. BAKER, Calibration of Watermark soil moisture sensors for soil matric potential and temperature, Plant and Soil, Vol. 143, No. 2 (June (II), 1992), pp. 213-217 ...

Acer i-Seeds fluoresce in different manners, as determined by the temperature of their surroundings Italian Institute of Technology ...

Verdmo uses three separate sensors to measure the moisture in your lawn, garden or potted plant, along with temperature readings to delivery accurate results, and make sure you know when to water.

Along those 60cm, six sensors at 10cm spacings take moisture readings every 30 minutes and send a soil moisture content reading in millimetres (mm) and soil temperature reading to a data logger at ...

As a bonus, we also give you the ambient temperature from the internal temperature sensor on the microcontroller, it’s not high precision, maybe good to + or – 2 degrees Celsius.” ...

The sensors were developed by Ellenburgh’s team at UAH including Earth Science Student Specialist Nick Perlaky. They are part of a broader research effort to study soil moisture and fire effects.