ESI - Model Gro-Point Lite - Soil Moisture and Temperature Sensor

• Moisture readings can be user-calibrated with 3rd-order polynomials to meet custom requirements.
• Low power requirements—suitable for remote, autonomous applications.
• Patented TDT5 technology for scientic-grade accuracy and excellent long-term stability of measurements.
• Fully potted electronics for excellent durability.

• Soil moisture and temperature probe.
• 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 5 m (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.
• Comes with 5 m (16.4′) durable cable (4-pin IP68-rated EN3 connector optional).
• SDI-12/RS-485 version of sensor can be custom calibrated by the customer—see detailed procedure in the user manual (see Downloads section).

Analog Version

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
• 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

• Dimensions 19.6 cm x 2.0 cm x 0.56 cm (7.7” x 0.8” x 0.2”)
• Weight (with standard cable) 272 g (0.6 lb.)
• Cable weight 38 g per m (0.42 oz. per foot)
• Standard cable
• 5 m (16.40 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
• 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

• Dimensions 19.6 cm x 2.0 cm x 0.56 cm (7.7” x 0.8” x 0.2”)
• Weight (with standard cable) 272 g (0.6 lb.)
• Cable weight 38 g per m (0.42 oz. per foot)
• Standard cable:
• 5 m (16.40 ft.)
• 4xAWG22 dual-shielded, twisted pair, rated for direct burial
• Warranty 1-year limited parts and labour