This logger sensor is based on measuring the vacuum pressure in a tensiometer. A tensiometer is a closed tube with a special ceramic part in its end. The tensiometer is filled with water and put in the soil. If the soil is dry, water goes out by diffusion through the ceramic holes and vacuum pressure is created in the tensiometer. When we wet the soil, the vacuum in the tensiometer pulls water into the tensiometer and the vacuum decreases. This is why soil moisture is measured in
As with all Edu-Logger Sensors this must be used with one of the Edulogger communication modules:
Graphic Display Module
( 900-239 )
Experiment Duration: 1 second to 31 days.
Range and operation modes:-
-20 to 50 cBar
-20 to 50 kPascal
Max Sample Rate (S/sec):-
100 (subject to experiment duration)
Delivery with Edulab is FREE in the UK.
99% of orders will be dispatched same working day
Some goods, because of their size, weight and supply route will incur a larger delivery cost and will have a longer lead time. Edulab will contact you to inform you of this.
Customers from Europe and the rest of the world will have delivery calculated at checkout.We reserve the right to contact the customer prior to dispatch of goods to inform of a change in cost of delivery.