Features: Corrosion-resistant ABS housing Scratch-resistant acrylic lens Easy access hinged front bezel Dial diameter: 3.75" Mounting hardware included Weight: 10 oz. Clock, Time & Tide and Tide Indicator require one “AA” battery (not incl.) One year manufacturer's warranty High Pressure Typical Weather: Clear Skies Fishing Trends: Fish slow down, find cover or go to deeper waters. Rising Pressure Typical Weather: Clearing or Improving Fishing Trends: Fish tend to become slightly more active Stable Pressure Typical Weather: Fair Fishing Trends: Normal Fishing Falling Pressure Typical Weather: Degrading Fishing Trends: Most active fishing Slightly Lower Pressure Typical Weather: Usually Cloudy Fishing Trends: Fishing head away from cover and seek shallower waters. Low Pressure Typical Weather: Rainy and Stormy Fishing Trends: Fish will tend to become less active the longer this period remains. Look into this overlooked tool and I am sure you will find some correlations that help you catch more fish, learn patterns and find fish. Work best at elevations 2000 feet and below.