Featuring STIHL M-Tronic™ – an engine management control system that intelligently manages the operating performance of the engine – the MS 441 C-M MAGNUM® chainsaw is ideal for professional jobs. The innovative system eliminates the low and high-speed carburetor adjustment screws and compensates for dirty air filters, changes in elevation and fuel quality through an electronic monitoring of the engine, digitally controlling the fuel/air mixture. Designed with the professional in mind, the MS 441 C-M MAGNUM® features a side-access chain tensioner and an advanced anti-vibration system that helps reduce user fatigue. A translucent fuel tank makes checking levels easy. A decompression valve and pre-separation air filtration offer an easier start and longer run times.