FLIR also sells a handheld monocular version of its sensor, the ThermoVision FlashSight, which is used now by fire and police departments. It was suggested to the FLIR engineers that a waterproof version would probably be well received by cruisers. Of course, you don't have to wait; you can buy the FlashSight for $10,000. Expensive, yes, but imagine being able to see obstacles, flotsam, unlit marks, and overboard crew as clear as day in the middle of the darkest night. The retail price for the basic Navigator is $5,000 ($7,500 with the pan option and $9,000 for the full pan-and-tilt option).