The GMR 424 xHD2 4 kW high-definition 4-foot open-array radar is designed for serious seafarers of larger yachts and sport fishing boats that are most likely under 40-feet. The GMR 424 xHD2 is the open array you need to get the features you want. It’s capable of excellent sensitivity and consistent target positioning, making it perfect for cruising and fishing offshore, overnight and in foggy, limited or no visibility conditions.