Sommer - Model SND -Snow Drift Sensor

Extremely robust sensor to determine snow drift intensity. The sensing part of the instrument is a cylindrical, anti-abrasion, anti-adhesion and anti-rime coated tube supported by two strong stainless steel arms. The impact of drifting snow and the friction of laminar wind induce a change in internal acoustic pressure. The excitation by snow and wind is discriminated by a specific acoustic, mechanical and electronic design. It features continuous or pulse analog voltage outputs and supports SDI-12 communication, serial RS-232, and Modbus RTU RS485 (using an optional adapter). The amout of snow drift is returned in g/m²/s, a simple unit to interpret how much snow has been transported onto a road or an exposed slope.