Soil Moisture Profile Probes and Sensors
Accurately measure soil moisture and temperature
GroPoint™ Profile
Multi-Depth Soil Moisture and Temperature Sensor
Powered by TDT⁵
Continuous soil moisture measurements over the entire length of the probe
Available in 6 different probe lengths up to 48” (120cm)
GroPoint™ Lite
Analog or Digital Soil Moisture and Temperature Sensor
Powered by TDT⁵
Flexible interface options (SDI-12, RS-485, 0-5mA and 4-20ma)
Simplify integration into a broad range of applications.
Compare the GroPoint™ Sensor Suite
| GroPoint Profile | GroPoint Lite | ||
|---|---|---|---|
| Product |
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| View Profile | View Lite | ||
| Summary | The only soil moisture probe to give a true soil moisture profile by continuously measuring the volumetric water content at multiple depths while also measuring the soil temperature. | Analog or digital soil moisture and soil temperature sensor. Exceptional accuracy and fully-potted electronics for long-term durability. | |
| Why choose this sensor? | When you want to measure the soil moisture profile and soil temperature profile at multiple depths with extreme accuracy to monitor water penetration through the soil. | When you need an extremely accurate and durable single-point soil moisture sensor to measure the volumetric water content and soil temperature. | |
| Moisture | |||
| Temperature | (Optional every 10cm) | (Digital Only) | |
| Electrical conductivity (salinity or EC) | |||
| Wetting front | |||
| Technology | TDT5 Multiples of 15cm segments. |
TDT5 | |
| Analog | 0-5mA | ||
| 4-20mA | |||
| Digital | SDI-12 | ||
| RS-485 MODBUS |
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| Measurement range | Moisture | 0% to 100% of VMC | 0% to 100% of VMC |
| Temperature | -20°C to +70°C (-4°F to 158°F) | -20°C to +70°C (-4°F to 158°F) (digital only) | |
| Electrical Conductivity | n/a | n/a | |
| Accuracy | Moisture | ±2.0% * | ±2.0% * |
| Temperature | ±0.5°C | ±0.5°C (digital only) | |
| Electrical Conductivity | n/a | n/a | |
| Precision | Moisture | < 0.2% | < 0.2% |
| Current consumption | Quiescent | < 0.5mA | < 0.1 mA (digital) |
| Active | 15-20 mA (depending on number of segments) for 100 mS |
0-5 mA: 18 mA nominal, 25mA max |
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* 8% to 42% VMC, in controlled laboratory conditions; factory calibrated for most agricultural soils. In field applications, accuracy may slightly decrease due to the inevitable heterogeneity of soil texture, soil compaction, moisture and fluctuation in soil temperature. The accuracy may also decrease in difficult soil conditions (higher clay and salinity content). In normal conditions, GroPoint soil sensors will maintain their accuracy from permanent wilting through field capacity in sandy loam through clay soils with less than 60% clay particles. Under moderately saline conditions, GroPoint soil sensors will maintain their accuracy up to 6 ds/m.
GroPoint's patented technique for soil moisture measurement
Our proprietary TDT5 technology delivers an exceptional price:performance ratio, with performance as good (in most cases better) as soil sensors costing much more.