The Automatic Sludge Blanket Level Detector from Markland Specialty Engineering monitors and controls the solid-liquid interface levels in water and wastewater clarifiers and settlement tanks and automates biosolids removal. Measuring primary, secondary, and backwash silt/sludge levels, it allows users to program pumps to operate only when necessary, preventing carry-over, optimizing feed density, and improving outflow for reuse. This helps reduce energy usage, wear and tear on pumps, and downtime for maintenance. Its slim profile and use of high-intensity infrared light make it ideal for obstructed or constricted areas. No calibration is required, and a wireless data link is available. 855-873-7791; www.sludgecontrols.com