4090 Sheet Metal/HVAC Pro Calculator

Advanced Construction-Math Calculator for Sheet Metal, HVAC

The Sheet Metal/HVAC Pro Calc is designed for sheet metal workers and HVAC technicians to simplify dimensional math, geometry, trig, and has custom HVAC functions all in one simple-to-use and versatile tool for skilled tradesmen.

Sheet metal calculations

• X, Y, R (radius)
• Theta
• Seg Radius
• Converts between Polar and Rectangular Coordinates
• Offset functions determine "S"- shaped bends in ductwork

Additional features

• Order of operation
• Parenthesis operators
• Square, cube, square root, and cube root calculations
• Works as a regular calculator
• Backspace key for last entry editing

Trigonometric functions

• Sine, Cosine, Tangent, Arcsine, Arcosine, and Arctangent
• ArcK Constant
• Calculates non-90° triangles

Built-in HVAC formulas

• Fan Law Functions for Test and Balance (TAB)
• Velocity
• Velocity Pressure
• Advanced construction-math functions
• Work in and convert between building dimensional formats: feet, inch, fractions, and metric
• Calculate instant areas and volumes
• Perform square-ups, slopes, rafters, and more
• Determine regular, irregular hip/valley rafter lengths plus plumb, level, and cheek cut angles
• Perform complete stair layouts
• Find circle, column/cone surface area, and volume solutions
• Complete D:M:S to decimal degree conversions

Includes

• Rugged shock, dust, and moisture-resistant Armadillo Gear case, and a protective slide cover
• Quick reference guide and complete easy-to-follow user's guide
• 2 Long-life batteries (LR-44)
• One-year limited warranty

Tech Specs

• Size: 5.6" x 3.0" x 0.5" (142mm x 76mm x 13mm)
• Product Weight: Calculator only 3.2 oz. (91gm)
• Power: Two 1.5 volt (LR 44) Long-life Batteries
• Display Type: LCD
• Display Dimensions: 2.5"L x 0.75"W (64mm x 19mm)
• Accuracy: 12 Digit Internal Accuracy