Soil Moisture Sensor
TDR-310W
The TDR-310W is a modification to the MUNRO TDR-315N. Its shorter rods (10cm instead of 15cm) allow it to fit in standard rockwool blocks. The Soil Smart analysis engine is also tuned for non-mineral soils often used in Controlled Environment Agriculture (CEA), such as rockwool and coco coir, yet still performs well in traditional mineral soils. It also has a much higher amplitude waveform than the H-series sensors, which consumes more power, but makes it very effective in taking measurements in challenging soil environments. It is a complete integrated time domain reflectometer that combines ultra-fast waveform generating and digitizing functions with a precision 5 pico-second resolution time base and highly sophisticated waveform digitizing and analyzing firmware that provides true time domain analysis of soil-propagated waveforms. Its form factor is designed primarily for ease-of-use in non-mineral media commonly used in vertical farming applications. A probe guide is provided to ensure that the waveguide rods are parallel when pushing them into the soil. It provides reading data through a 3-wire SDI-12 interface and is compatible with any data recorder that is compliant with SDI-12 version 1.4 and earlier.
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Description
The TDR-310W is a modification to the MUNRO TDR-315N. Its shorter rods (10cm instead of 15cm) allow it to fit in standard rockwool blocks. The Soil Smart analysis engine is also tuned for non-mineral soils often used in Controlled Environment Agriculture (CEA), such as rockwool and coco coir, yet still performs well in traditional mineral soils. It also has a much higher amplitude waveform than the H-series sensors, which consumes more power, but makes it very effective in taking measurements in challenging soil environments. It is a complete integrated time domain reflectometer that combines ultra-fast waveform generating and digitizing functions with a precision 5 pico-second resolution time base and highly sophisticated waveform digitizing and analyzing firmware that provides true time domain analysis of soil-propagated waveforms. Its form factor is designed primarily for ease-of-use in non-mineral media commonly used in vertical farming applications. A probe guide is provided to ensure that the waveguide rods are parallel when pushing them into the soil. It provides reading data through a 3-wire SDI-12 interface and is compatible with any data recorder that is compliant with SDI-12 version 1.4 and earlier.
Features
• Designed for easy use with rockwool blocks and smaller grow media
• Large sampling volume with the wide spacing of the 10cm waveguides
• Soil Smart analysis optimized for non-mineral soil types, while still works well in mineral soils
• Incident Wave Amplitude: 2.3 V
• 20% to 80% Incident Wave Rise Time: 300ps
• Waveform Digitizing Resolution: 5 ps
• SDI-12 Interface
• 3-element 10cm stainless steel waveguide
• 5m or 10m 3-conductor waterproof cable (standard)
• Waterproof Epoxy-filled Housing.
Measurement Functions
Volumetric Water Content: 0% to 100%
Medium Permittivity: 1 to 85
Medium Bulk Electrical Conductivity: 0 to 4500 µS/cm
Medium Temperature: -40 to +55°C
Pore Water EC (Hillhurst Model): 0 to 55000 µS/cm.
