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| Brand | Tianhe Instruments |
|---|---|
| Model | TH-GS3 |
| Origin | Shandong, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Power Supply | DC 12 V |
| Operating Current | 22 mA |
| Power Consumption | 0.26 W |
| Communication | RS-485 Modbus RTU |
| Measurement Layers | 3 standard (customizable up to 10) |
| Temperature Range | −30–70 °C |
| Temp. Accuracy | ±0.3 °C (−10–70 °C) |
| Temp. Resolution | 0.01 °C |
| Volumetric Water Content Range | 0–100 % |
| VWC Accuracy | ±3 % (mineral soils, <12 % organic carbon, <45 % clay) |
| VWC Resolution | 0.1 % |
| Electrical Conductivity Range | 0–20,000 µS/cm |
| EC Accuracy | ±3 % (0–10,000 µS/cm), ±5 % (full scale) |
| EC Resolution | 1 µS/cm |
| IP Rating | IP67 |
| Startup Time | 60 s |
| Housing Material | Imported polycarbonate (PC) |
| Electrode Design | Helical capacitive sensing geometry |
| Calibration | Onboard auto-calibration algorithm |
| Wireless Option | Optional LoRaWAN/NB-IoT gateway integration |
| Brand | Tianhe (Shandong Tianhe Instrument Co., Ltd.) |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | TH-SS15S |
| Detection Principle | Chlorophyll-a Fluorescence Method |
| Measurement Range | 0–400 µg/L |
| Resolution | 0.01 µg/L |
| Accuracy (Linearity) | R² > 0.999 |
| Temperature Compensation | Automatic |
| Self-Cleaning Function | Integrated Brush-Based Cleaner with Configurable Interval & Cycles |
| Power Consumption | 0.7 W (Operating), 0.4 W (Standby) |
| Supply Voltage | DC 12–24 V |
| Output Interface | RS-485 (Modbus RTU Protocol) |
| Storage Temperature | –5 to 65 °C |
| Operating Environment | 0 to 50 °C, < 0.2 MPa |
| Installation | Submersible, 3/4″ NPT Thread |
| Cable Length | 5 m |
| Protection Rating | IP68 |
| Housing Material | 316L Stainless Steel |
| Calibration Method | Two-Point (Zero & Span) via PC Software or Modbus Commands |
| Brand | Tianhe (Shandong Tianhe Instrument Co., Ltd.) |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Model | TH-GD1 |
| Spectral Range | 280–3000 nm |
| Filter Channels | 10 discrete bands (340, 380, 440, 500, 670, 870, 940, 1020, 1640 nm + UV-A broadband 280–300 nm) |
| FWHM | 2 nm @ 340 nm |
| Field of View | ≤1.3° (full angle) |
| Tracking Accuracy | <0.1° (active sun-sensor mode) |
| Data Resolution | 1 s minimum integration time |
| Calibration Uncertainty | <2% (traceable to national meteorological standards per JJG 458-1996) |
| Power Supply | DC 12 V (with auto-switching green power management module) or AC 220 V |
| Operating Temperature | −40 °C to +55 °C (low-temp variant) |
| IP Rating | IP66 |
| Weight | 6 kg |
| Dimensions | 235 × 181 × 310 mm (W×D×H) |
| Communication | RS485 (Modbus RTU), 4G LTE, Bluetooth 5.0 |
| Onboard GNSS | Integrated high-precision GPS/GNSS module for time synchronization and georeferencing |
| Payload Capacity | 17 kg |
| Azimuth/Elevation Range | 0–350° / 0–120° |
| Max Tracking Speed | 4.5°/s |
| Torque | 12 N·m |
| Brand | Tianhe (Shandong Tianhe Environmental Technology Co., Ltd.) |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | TH-TS400 |
| Price | USD 695 (FOB Qingdao) |
| Power Supply | Solar-powered with MPPT charge controller |
| Communication | GPRS, Bluetooth 4.2, RS485 (optional wired interface) |
| Display | 7-inch low-temperature Android panel (v4.4.2, Quad-core Cortex-A7, 512MB RAM / 4GB storage) |
| Enclosure | IP66-rated ABS weatherproof housing |
| Deployment Time | ≤30 minutes by single operator |
| Data Storage Capacity | ≥500,000 records |
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