The R7 electronic laser receiver provides high end features at an affordable price. Reception height: 2", Reception angle: ±60 degrees, Selectable on grade accuracies: ±1/16" standard, ±1/8" coarse, ±1/64" ultra fine, Display channels: 5, Power supply: 9V alkaline battery, Run time: 60 hours, Sealed against dust & water, 3 Year Warranty |