Requires s SavvyLevel device that can be purchased at www.savvylevel.com. SavvyLevel RV is an integrated leveling system designed specifically for leveling Motorhomes, 4WD and Campers that have a 4 wheel base configuration. The device remotely reports which wheels require elevating to give you a perfect level. It reports in millimeters or inches and in block height if you choose to use OziBlock 'n' Chock (www.oziblocknchock.com.au) or Lynx leveling blocks. It also reports your vehicle pitch a