What all those gauges do is encourage the crew to have their "heads in the boat". The prudent mariner, helmsman, and trimmer is looking up and out. Or "getting his head out of the boat". If you have a dedicated navigator or tactician let him or her look at those digital readouts or gauges. Otherwise if you find yourself looking down to figure out what to do or see what you are actually doing. I suggest you tape over or turn that stuff off. SuburbanDharma has it right you are on vacation generally with guests of all shapes, sizes, and limits. REEF EARLY, you can always shake it out. The mental handicap that you must have a wind gauge is setting yourself up for disappointment or worse. On the modern boat their are simply too many moving parts, connections, and limited time and parts to promise that ever. See the original posted. A bunch of stuff he or she did not understand and did not need in the first place disrupted the fun. Full Disclosure. I would have fixed that water and determined what was causing those alarms, then determined whether the AC was a basic issue or worth disrupting the crew to rendezvous with the base to let them take the boat apart. Fuel gauges are almost always worthless on most boat. The alarm was most likely a bilge water level reached when the boat was still without the crew or boat moving around during the night. Just a few crew moving around, a wave or heel may be needed to trip a float switch to pump. One trick is before everything is powered down for the night. Manually run all the bilge pumps to fully empty the bilges. That is common and was a real problem on the Moorings 4700. It could also be a carbon dioxide warning with a sealed boat and gen set running. Even if the lights are all on and all the dials moving? How could you ever trust or understand how all that stuff is calibrated anyway.