No need to worry about the weather with the F44, it’s weatherproof. The Fisher F44 Metal Detector is strongest for beach, coins, relics and jewelry hunting. Talking about lightweight, it comes in at only 2.3 pounds. Running on two AA alkaline batteries, you should get 25-30 hours per set. You can use rechargeable, but don’t expect them to last as long. The F44 has five modes of operation, all-metal for general purposes, coin, artifact, jewelry and custom. One thing to note, it’s waterproof and good in rainy weather, but big warning is not to use it under water.