The TRAC Outdoors Fishing Barometer helps you track barometric pressure for better fishing success. Know when to fish—sudden barometric pressure changes trigger fish to feed; fishing is normally poor during low or constant barometric pressure. This barometer easily calibrates to your local barometric pressure. The adjustable pressure change indicator is simple to read. It features a reference marker and color-coded dial that indicates conditions for great, good, or poor fishing. This barometer is housed in durable, sure-grip plastic. A braided lanyard provides convenient hanging or carrying,