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Substrate soil (or growing media) is an artificially formulated soilless cultivation medium composed of organic or inorganic materials. It serves as an alternative to traditional soil, providing root support, water retention, and nutrient delivery. Common substrate materials include:
Organic Substrates: Coco coir, peat moss, wood fiber, rice husk biochar, compost.
Inorganic Substrates: Perlite, vermiculite, rockwool, clay pellets, sand.
Compared to conventional soil, substrate soil offers several advantages:
✅ Superior Aeration: High porosity (30%–70%) ensures better root oxygenation, reducing rot risk.
✅ Controlled Water & Nutrient Retention: Adjustable composition (e.g., strawberries prefer moisture, tomatoes need drainage).
✅ Disease-Free: Minimizes soil-borne pathogens (e.g., root-knot nematodes, fusarium wilt).
✅ Lightweight: Ideal for vertical farming (e.g., rack systems, bag culture, trough cultivation).
⚠️ Requires Precision Management: Substrates lack inherent nutrients, necessitating fertigation with close EC/pH monitoring.
◀◀ Product Parameters ▶▶
Substrate cultivation hinges on maintaining water-air-nutrient balance, requiring monitoring of:
Output Interface | SDI-12, V1.3 |
Power Supply | 3.6-16V/DC |
Power Consumption | Quiescent Current : 30uA Measuring Current : 10mA during 150ms measurement |
Soil Moisture Measurement | Apparent dielectric permittivity (xa): Range:1-81 (air - water) Resolution:1.00-40.00:±0.1,40.00-81.00:±0.5 Accuracy:1.00-40.00:±2%,40.00-81.00:±5% Soil Moisture(VWC): Range:0%-100% (air - water) Resolution:derived by the conversion function from epsilon to VWC Accuracy:derived by the conversion function from epsilon to VWC |
EC Measurement | Range: 0-23ds/m Resolution: 0-7ds/m, 0.01ds/m; 7-23ds/m, 0.05ds/m Accuracy: 0-7ds/m, 5%; 7-23ds/m,15% EC temperature compensation: 0-50°C |
Temperature Measurement | Range: -40~80°C, Resolution:0.1°C, Accuracy:±0.5°C |
Measurement Technique | Moisture by FDR and EC by AC excitation |
IP Ratings | IP68 |
Operating Temperature | -40~85°C |
Sensor Rod | Stainless steel |
Sensor Sealed | Epoxy resin |
Installation | Surface or buried installation |
Cable Length | 5 meters or Customize |
Dimension | 88*71*26mm |
| Category | Details |
|---|---|
| Temperature Range | -40°C to 75°C (±0.2°C accuracy) |
| Humidity Range | 0–100% RH (±3% accuracy) |
| CO2 Range | 0–5000ppm (±50ppm +5% accuracy) |
| Light Range | 0–200,000 Lux (indoor: 0–65,535 Lux) |
| Outputs | 4–20mA / 0–10V / RS485 (Modbus-RTU) / RS232 |
| Power Supply | 9–30V DC (12V recommended) |
| Protection Grade | IP65 (dust/waterproof) |
| Probe Options | Built-in (standard, PE, metal) / External (high-temp, threaded) |
| Dimensions | Compact wall-mount design (105mm hole spacing) |
| Communication | Modbus-RTU protocol, 9600 baud rate |
Also support other parameters, please contact sales!
◀◀ Recommended Setup solution▶▶
Cultivation Method: 3-tier vertical rack (20 pots/layer, coco coir + perlite substrate).
Area: 10㎡.
Automation: Fertigation triggered by EC/pH, cloud-based data logging.
| Equipment | Example Model | Qty | Role |
|---|---|---|---|
| Substrate Moisture/Temp/EC | BGT-SEC(Z2) | 6 | 2 per layer (mid-depth monitoring). |
| Substrate pH Sensor | BGT-PH1 | 3 | 1 per layer, linked to fertigation. |
| Canopy Temp/Humidity | BGT-AWS(Wall mounted) | 3 | 1 per layer, with radiation shield. |
| CO₂ Sensor | BGT-WSQ | 1 | Centrally mounted for full coverage. |
| PAR Sensor | BGT-PAR1 | 1 | Height-adjustable at canopy level. |
| Controller | Pending | 1 set | Data processing & irrigation/light control. |
Irrigation: Triggered when substrate moisture <30% (10-minute fertigation).
Nutrient Control: Reduce fertilizer if EC >2.5mS/cm; adjust pH if <5.5.
Environment Control: Inject CO₂ if <800ppm; activate grow lights if PAR <200μmol.
