Name: Soil Moisture Probe
SKU: HD3910
Availability: InStock

Soil Moisture Probe

The HD3910 measures soil temperature and volumetric water content (VWC) by capacitive sensing.

Description

The HD3910 measures soil temperature and volumetric water content (VWC) by capacitive sensing.

It is available in two models: HD3910.1 (two electrodes) or HD3910.2 (three electrodes). The HD3910.2 is for use in restricted volumes.

The circuit board is protected inside a plastic housing sealed with epoxy resin, making it suitable for use in harsh environmental conditions.

Various output options are available: RS485 with MODBUS-RTU protocol, SDI-12 or analogue (0.5-3V). Please specify which version is required when requesting a quotation.

The product is manufactured by Delta Ohm.

Additional information

Model	HD3910.1, HD3910.2
Cable	5 metres, 10 metres
Output	RS485 MODBUS-RTU, SDI-12, Analogue

Product Specifications

Measuring Range	0-60% VWC
Resolution	0.1%
Accuracy	3 % between 0 and 50% VWC (standard mineral soil, EC < 5 mS/cm)
Measuring Volume	D = 60 mm x H=150 mm for the 2-electrode probe D = 40 mm x H=110 mm for the 3-electrode probe
Temperature Sensor	NTC 10 kΩ @ 25°C
Measuring Range	-40°C to + 60°C
Resolution	0.1°C
Accuracy	±0.5°C
Long-term Stability	0.1°C / year
Materials	Handle: thermoplastic material and epoxy resin Electrodes: epoxy glass, thickness 2 mm
Environmental Protection	IP67
Weight	150 g approx.