Display Model Number     SA550XP Unit Dimensions     2.5” L x 5.5” W x 3.75” H Unit Weight      16 oz (.8 kg) Display Type     Polarized DOT Matrix Liquid Crystal Power Requirement     3 x ‘AAA’ (not included) Battery Life 30 Hours (Continuous Use) Waterproof Rating     IPX 4 (360 Degree Spraying) Warranty     2 Years   Wireless Lanyard Unit Dimensions     15" W X 15"L (381 x 381 MM) Unit Weight     13oz (.4 kg) Power Requirement     2 x AAA (not included) Battery Life 60 Hours (Continuous Use) Waterproof Rating     IPX 8 (Continuous Submersion) Warranty     2 Years (90 Day Grip Warranty)