The SMP subsurface probe is a capacitance-based soil moisture and temperature monitoring device offering up to 15 sensors per probe. The subsurface probe requires an external logger and external power supply to collect soil temperature and moisture profile information. The sensors are encapsulated inside a probe rod at different depths with a pitch of 10 cm, and the measurement of each pitch represents the value of the respective 10 cm interval [-5; +5]. Thanks to its tapered shape, the probe can be easily installed in most types of soil. In addition, SMP can be completely buried, ensuring a fully customizable measurement step while reducing the risk of damage to machinery.
The probe can be supplied in different lengths from 200 mm to 1600 mm. SMP is supplied with a 5 m cable for power and signal.