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| Brand | Lufft |
|---|---|
| Origin | Germany |
| Model | SHM31-UMB |
| Measurement Principle | Time-of-Flight (ToF) Laser Ranging |
| Laser Source | Class 1, 905 nm Pulsed Semiconductor Laser |
| Range | 0.2–30 m (typical snow depth measurement up to 20 m) |
| Resolution | 1 mm |
| Accuracy | ±5 mm or ±0.5 % of reading (whichever is greater) |
| Beam Divergence | < 3 mrad |
| Operating Temperature | –40 °C to +60 °C |
| IP Rating | IP67 |
| Output Interface | SDI-12, RS-232, RS-485, UMB-ASCII, UMB-Binary |
| Power Supply | 6–30 VDC |
| Power Consumption | < 1.5 W (standby), < 3 W (active measurement) |
| Mounting | Adjustable tilt compensation via integrated dual-axis inclinometer |
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