Water Level Gauge Sensor
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| Brand | Aquaread |
|---|---|
| Country of Origin | United Kingdom |
| Model | LeveLine-EWS |
| Sensor Output | SDI-12 or Modbus RTU |
| Pressure Compensation | Integrated Barometric Sensor |
| Enclosure Dimensions | 90 × 90 × 160 mm |
| Water Level Accuracy | ±0.1% FS |
| Sensor Material | Stainless Steel Body with Polyoxymethylene (POM) Nose Cone |
| Warranty | 2 Years on LeveLine-Mini Sensor |
| Data Transmission | SMS and Email Alerts |
| Local Data Logging | Yes |
| Remote Configuration | SMS-based Command Interface |
| Third-Party Sensor Support | Up to 5 SDI-12 Devices |
| Brand | Baineng |
|---|---|
| Origin | Shanghai, China |
| Model | BN-RL |
| Type | Non-contact Pulse Radar Water Level Sensor |
| Measurement Principle | 26 GHz Pulsed Time-of-Flight (PTOF) |
| Range Options | 0–15 m / 0–30 m / 0–45 m |
| Accuracy | ±2 mm (for 0–15 m range) |
| Beam Angle | 6° or 8° |
| Output Interfaces | RS-485 (Modbus RTU), 4–20 mA (optional), 0–5 V (optional) |
| Power Supply | 12 VDC (RS-485 mode) or 24 VDC (4–20 mA loop-powered) |
| Max. Current Consumption | 12 mA |
| Operating Temperature | −40 °C to +100 °C |
| Enclosure Rating | IP68 |
| Wave Filtering | Built-in dynamic surface wave suppression algorithm |
| Maintenance | Maintenance-free design |
| Brand | Heron |
|---|---|
| Origin | Canada |
| Model | C30 / C60 / C100 |
| Measurement Principle | Conductivity-based water level sensing with integrated temperature compensation |
| Conductivity Range | 0–80,000 µS/cm |
| Temperature Range | 0–50 °C |
| Conductivity Temperature Compensation Coefficient | 2.0 %/°C |
| Operating Tensile Strength | ASME-compliant stainless steel core |
| Max Operating Temperature | 50 °C |
| Product Category | Pressure-Independent Conductivity Water Level Sensor |
| Brand | Onset HOBO |
|---|---|
| Origin | USA |
| Model | U20-001-01 / U20-001-02 / U20-001-03 / U20-001-04 |
| Measurement Principle | Absolute pressure-based hydrostatic water level sensing with integrated temperature compensation |
| Temperature Range | -20 to 50 °C |
| Temp Accuracy | ±0.37 °C @ 20 °C, ±0.5 °C outside -5 to 40 °C |
| Temp Resolution | 0.1 °C @ 20 °C |
| Water Level Ranges | 0–4 m (U20-001-04), 0–9 m (U20-001-01), 0–30 m (U20-001-02), 0–76 m (U20-001-03) |
| Water Level Accuracy | ±0.3 cm (U20-001-04), ±0.5 cm (U20-001-01), ±1.5 cm (U20-001-02), ±3.8 cm (U20-001-03) |
| Water Level Resolution | 0.14–0.87 cm (model-dependent) |
| Dimensions | 150 mm × 24.6 mm |
| Weight | 7 g |
| Memory Capacity | 21,000 measurements |
| Brand | RenKe |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | RS-SJ-N01-2 |
| Output Options | RS485 (Modbus-RTU), Relay Dry Contact (NO) |
| Power Supply | DC 10–30 V |
| Operating Temperature | −20 °C to +60 °C |
| Relative Humidity Range | 0–80% RH |
| Max RS485 Distance | 2000 m |
| Max Electrode/Cable Length | 30 m |
| IP Rating | IP67 (inferred from waterproof housing & harsh-environment deployment) |
| Brand | Solinst |
|---|---|
| Origin | Canada |
| Model | Driptych |
| Type | Acoustic Drip Counter |
| Power | Lithium Thionyl Chloride 1/2 AA 3.6 V |
| Dimensions | 55 × 55 × 65 mm |
| Weight | 300 g |
| IP Rating | IP65 (short-term submersion to 0.3 m) |
| Sensitivity | Detects ≥0.15 mL water droplets falling from ≤200 mm height |
| Max Drip Rate | 5 drops/s |
| Recording Interval | Configurable from 1 s to 24 h |
| Events per Bucket | Up to 16,383 |
| Total Buckets | 32,767 |
| Battery Life | Up to 10 years in sleep mode |
| Data Output | USB 3-pin interface |
| LED Indicators | Three status LEDs (power, activity, error) |
| Environmental Shielding | Acoustic noise rejection for false-trigger suppression (e.g., ambient sound, sheet flow) |
| Brand | Tianze Environmental |
|---|---|
| Model | TZ-SW3A |
| Measurement Principle | K-Band Planar Array Radar (24 GHz) |
| Water Level Range | 0.1–40 m |
| Water Level Accuracy | ±5 mm |
| Water Level Resolution | 1 mm |
| Surface Velocity Range | 0.15–15 m/s |
| Velocity Accuracy | ±2% of reading |
| Velocity Resolution | 0.01 m/s |
| Rainfall Intensity Range | 0–4 mm/min |
| Rainfall Accuracy | ±0.2 mm |
| Rain Collector Orifice | Ø200 mm |
| Operating Temperature | −35 °C to +60 °C |
| Storage Temperature | −40 °C to +60 °C |
| Enclosure Rating | IP68 |
| Power Supply | 12 V DC (100 mA operational, <1 mA standby) |
| Output Interface | RS485 / MODBUS RTU |
| Communication Protocols | HJ-212, HTTP, TCP |
| Solar Power Option | 100 W panel + 3.7 V / 10 Ah LiFePO₄ battery |
| Mounting | 3 m vertical pole + 3 m horizontal arm |