Soil Temperature Sensor

Soil Temperature Sensor in use by the St Ives Weather Station in Huntingdonshire & Cambridgeshire

 

Remote Thermo Sensor

Remote Thermo Sensor

Oregon Remote Thermo Sensor THC238 used at the St Ives Weather Station

 

Adapted Transmitter Housing

Adapted Transmitter Housing

Protective enclosure for the transmitter

 

The Station soil temperature reading is gathered by the Oregon Remote Thermo Sensor THC238 and although this model is weather-proof it was decided to ensure this by installing in a custom built housing made from a high-quality "plastic lunch box".

Sensor Installation

Sensor Installation

The Soil temperature Wireless transmitter installed on the station mast

 

Ground entry

Ground entry

Sensor cable taken below ground with in a protective copper pipe

 

We had also heard stories of the ground sensors and their respective cables being eaten by rodents so the cable was taken below ground in 15mm copper pipe with the actual sensor isolated from any thermal conductivity by using heavy duty plastic pipe for the final 10cm. The sensor itself is located 20cm below surface level.