Description
The SM150T measures soil moisture and temperature with research-grade accuracy
• Research grade sensor at a great price
• Soil moisture and temperature
• Dependable moisture accuracy ± 3%
• Robust and buriable
Research grade sensor:
Patented sensor electronics produce a highly dependable sensor with exceptional salinity and temperature stability.
The SM150T is built to withstand long term burial – the sensor, connectors and cable are all environmentally protected to IP68.
Moisture accuracy is 3% (after soil specific calibration) and the built-in temperature sensor achieves 0.5°C accuracy.
Data logging and readout:
The SM150T is a dual purpose probe. It can be used portably for instant moisture readings, or left installed in the soil for continuous logging – to provide moisture and temperature data.
For installed sensors – The SM150T can be logged by any Delta-T data logger and by many loggers from other manufacturers (simple 0-1 V output).
Installation:
The SM150T’s sharp pins minimise soil disturbance, preserving the original soil structure around the measurement rods, and making the probe easy to insert and install. For burial at depth the cylindrical shape facilitates installation in augered holes. Optional extension tubes assist with placement and removal (50 cm and 100 cm lengths, connectable).
Calibration:
The SM150T is provided with general calibrations for mineral and organic soils. A two-point soil specific calibration can be performed for greater accuracy if required.
Applications:
• Soil science
• Horticulture
• Irrigation
| Brief Specification | |
| Water content | |
| Accuracy | ± 0.03 m3.m-3 |
| Range | 0 to 0.7 m3.m-3 |
| Temperature | |
| Accuracy | ± 0.5 °C, 0 to +40°C |
| Output | 0 to 1.0 V differential |
| Power | 5 to 15 V, 18 mA for 1 s |
| Sample Volume | ~55 x 70 mm diameter |
| Size | 143 x 40 mm diameter |
| Environmental | IP68, with Delta-T cables |
