A unique approach to measuring moisture via vacuum pressure in a tensiometer.

The tensiometer on this logger sensor measures soil moisture via pressure level. When the soil is dry the water exits ceramic holes in the end due to diffusion, when the soil is wet the vacuum in the tensiometer pulls water inside and the vacuum decreases. This sensor supports experiments lasting from 1 second to 31 days.


For each probe you will need one or more of the following items: Battery Module, Viewer module(Not needed if connecting to a computer to display data), USB module (not needed if only using as a stand alone probe or you have the WIFI module), WIFI module (Not needed if connecting to a computer through the USB module). Recommended is to have a battery module and a USB module.

• Max. sample rate 100 S/sec.
• Experimental duration 1 sec. to 31 days

The tensiometer on this logger sensor measures soil moisture via pressure level. When the soil is dry the water exits ceramic holes in the end due to diffusion, when the soil is wet the vacuum in the tensiometer pulls water inside and the vacuum decreases.