Stihl iMOW RMI 422 PC-L Robotic MowerThe STIHL RMI 422 PC L Series iMOW robotic mower introduces a higher level of convenience for homeowners without sacrificing quality or performance. A host of intelligent features including automatically adjusting to terrain and relying on sensors to navigate obstacles ensures iMOW delivers performance and precision. With the ability to handle slopes up to 22, the RMI 422 PC L is designed to cut yards up to acre in about 17 hours per week. AT&T LTE