DLS Depth Controller Dual-Screen Road Milling Machine Sensor 115640 161400 2075279 The APOLLO DLS I Depth Controller is a professional replacement control component for road milling machines, supplied under part numbers 115640, 161400 and 2075279. Featuring a dual-screen design, this DLS depth controller supports accurate milling depth adjustment and stable machine control during road construction work. Accurate depth control is essential in road milling. The DLS depth