GroPoint - Model Lite - Accurate and Reliable Analog or Digital Soil Moisture Probe
The GroPoint™ Lite is robust, reliable and highly accurate, providing cost-effective soil moisture and soil temperature measurements. The sleek, lightweight design installs quickly with minimal soil disruption. When installed vertically, the soil moisture sensor averages the volumetric water content over a soil layer of about 6” (15cm). When installed horizontally, the sensor can be used to measure soil moisture at a specific depth. GroPoint Lite can be deployed in irrigation-sensitive zones, such as around the root zone, to enable an irrigation monitoring system and increase water-use efficiency.
Soil Moisture and Temperature Sensor
- Soil moisture sensor retrieves measurements by averaging the volumetric water content
- Digitally measures soil temperature
- Flexible interface options (SDI-12, RS-485, 0-5mA and 4-20ma) simplify integration into a broad range of applications, ancillary equipment and data loggers.
- Based on our unique TDT5 technology.
- Comes with 5m (16.4`) durable cable (4-pin IP68-rated EN3 connector optional).
- Factory-calibrated for most agricultural soils, but can be custom calibrated before shipping-request when ordering.
- Low power consumption-suitable for remote applications.
- SDI-12/RS-485 version of the soil moisture sensor can be custom calibrated by the customer—see the detailed procedure in the user manual.
Moisture:
- Measurement range: 0% to 100% of VMC
- Accuracy: ±2.0% *
- Precision: < 0.2%
Electrical:
- Interface: 0-5 mA, 4-20 mA
- Connection: Bare wire (Optional EN3 3-pin IP66/IP68 rated environmental connector)
Warm-up time on power up:
- Input voltage: 6 to 14 VDC max. 18 VDC
- Current consumption: 0-5 mA:
- 18 mA (nominal), 25mA (max)
- 4-20 mA: 30mA (nominal), 50 mA (max)
Environmental:
- Operating temperature: -20°C to 70°C (-4°F to 158°F)
- Storage temperature: -40°C to 85°C (-40°F to 185°F)Physical
Physical:
- Dimensions: 19.6 cm x 2.0 cm x 0.56 cm (7.7” x 0.8” x 0.2”)
- Weight: 272 g (0.6 lb.)
- Cable weight: 38 g per m (0.42 oz. per foot)
- Standard cable: 5 m (16.3 ft.)3xAWG22 dual-shielded, twisted pair, rated for direct burial
- Warranty: 1-year limited parts and labour
Digital Version
Moisture:
- Measurement range: 0% to 100% of VMC
- Accuracy: ±2.0% *
- Precision: < 0.2%
Temperature:
- Measurement range: -20°C to +70°C (-4°F to 158°F)
- Accuracy: ±0.5 °C
Electrical:
- Interface: SDI-12, RS-485
- Connection: Bare wire (Optional EN3 4-pin IP66/IP68 rated environmental connector)
Warm-up time on power up:
- Input voltage: 6 to 14 VDC max. 18 VDC
- Current consumption: Quiescent: Active: 15-35 mA
Environmental:
- Operating temperature: -20°C to 70°C (-4°F to 158°F)
- Storage temperature: -40°C to 85°C (-40°F to 185°F)Physical
Physical:
- Dimensions: 19.6 cm x 2.0 cm x 0.56 cm (7.7” x 0.8” x 0.2”)
- Weight: 272 g (0.6 lb.)
- Cable weight: 38 g per m (0.42 oz. per foot)
- Standard cable: 5 m (16.3 ft.)4xAWG22 dual-shielded, twisted pair, rated for direct burial
- Warranty: 1-year limited parts and labour
* 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.