Description
Optical soiling sensor that tells you when cleaning actually pays. Dirt, dust and organic/inorganic pollution on PV modules cause real economic losses — the WSE-A60 measures the fouling rate of your PV glass optically, per IEC 61724-1:2021, so you schedule cleaning on data instead of guesswork.
Key Benefits
- High-precision optical measurement — estimates the soiling of the array by measuring dirt’s optical impact on a reference surface, assuming consistent pollution between arrays and sensor.
- No moving parts — minimal maintenance, no frequent cleaning of the instrument itself.
- Easy to deploy — simple installation with no on-site calibration; flexible placement for scientific sampling across the plant.
- Integrates with your monitoring — RS485 Modbus standard, 4G optional; runs on 8–24 V DC at under 2 W.
- Built for the field — IP67 aluminum housing, −40 to +70 ℃, 0–100% RH.
Specifications
| Item | Spec |
|---|---|
| Model | WSE-A60 |
| Measuring principle | Optical scattering |
| Measuring range | 100% – 50% (cleanliness) |
| Accuracy | 100–90%: ±1% · 90–80%: ±2% · 80–50%: ±4% |
| Stability | 1% / year |
| Response time | < 1 s |
| Connections | RS485 Modbus; 4G optional |
| Power consumption | DC 8–24 V @ < 2 W |
| IP rating | IP67 |
| Operating environment | −40 to +70 ℃, 0–100% RH |
| Material | Aluminum |
| Dimensions | 252 × 137 × 35 mm |
| Weight | 1.3 kg |
Best For
O&M teams that want to clean only when the yield loss justifies it. Pair it with any machine in our range — from the WSE-G03 brush to the WSE-R20 autonomous robot.





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