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Sonin DT110 Inchmate Measurement Conversion Calculator

4.0 out of 5 stars 33 customer reviews

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  • Foot, inch, and fraction calculator
  • Solve rise, run, and slope
  • Auto-off feature
  • Lithium battery
  • One-year warranty

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Product Description

Product Description

If you build or design things you know the importance of working with accurate dimensions. The most frustrating and costly construction headaches can usually be traced to dimensional errors. The Sonin DT110 InchMate+ Construction Calculator is for people who work with dimensions. The simple measurements (Foot - Inch - Fraction, or fif) you make with rulers or tape measures become difficult and tedious when you try to add and subtract them, let alone multiply and divide. The InchMate+ calculates these dimensions automatically. It was designed to be incredibly easy to use. It has a patented "self-prompting" system leading through the process of entering fif dimensions, and accepts inputs of to 1/16" - the practical limit of accuracy for common building and design projects.

From the Manufacturer

This unique foot/inch/fraction calculator will automatically solve rise, run diagonal, and slope of any triangle. These powerful triangle functions make this calculator a must for anyone dealing with roof rafters, foundation layout, and squaring up angles, walls, and floor plans. It converts easily between feet, inches, and fractions; inches and fractions; decimal feet; and meters. It has a handy auto-off feature and comes with a long-lasting lithium battery and instruction manual. One-year limited warranty.

Product Information

Technical Details

Part Number DT110
Item Weight 7.2 ounces
Product Dimensions 10.4 x 5.9 x 1.3 inches
California residents Click here for Proposition 65 warning
Item model number DT110
Item Package Quantity 1
Batteries Included? No
Batteries Required? No

Additional Information

ASIN B00002254Q
Customer Reviews
4.0 out of 5 stars 33 customer reviews

4.0 out of 5 stars
Best Sellers Rank #246,483 in Home Improvements (See top 100)
#156 in Electronics > Office Electronics > Calculators > Scientific
#170,556 in Office Products > Office Supplies
Shipping Weight 7.2 ounces
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item is not eligible for international shipping. Learn More
Date First Available November 8, 1999

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

I have been using my inchmate calculator for 10 years extensivly in my job as a mechanical designer. It is a great calculator and very fast. It helps me in adding and subtracting dimensions for layout of construction documents. The one I have does not have the rise, run, and slope features but square and square root keys acheive the same results just a little slower. The only improvement that the manufacturer could enhance for this calculator is the incorporation of sine, cosine, and tangent keys for trigonometric calculations. These features would win a five plus star rating for this already great calculator.
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How many times does it take to calculate where it make that CUT on the most expensive piece of wood in your collection? Exactly once! For years I have performed double, triple and sometimes many more checks on calculations for cuts on expensive, rare woods. The Sonin calculator has made calculation time short and accurate.
Easy to use and right on everytime. Now if I just get a tape measure that tells me when I measured wrong, I'm set!
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By A Customer on September 5, 2001
I don't know about you but I have a tough time adding dimensions after a few hors on the job. This tool will save time and money and get you home a little sooner to your family!
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By T. Larri on December 30, 2006
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I am a 35 year experienced builder and have owned both the Construction Master and Sonin Calculators. I liked the Sonin better because it's easier to use and more suited for problem solve a builder experiences. But I have noticed some people having problems when the Sonin displays the memory error message, they think it broke because they can't get it to escape from that. All you have to do is press the clear button twice or 2 times then turn it off and back on, or just use a pen and press reset on the back of the calculator. It tells you how to do that in the instruction booklet but I guess a lot of people don't like to read.
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Sonin doesn't make these anymore--they stopped about 4 years ago. Any new ones that you purchase might not work, as ours didn't. We called Sonin, they said not to purchase another since it wouldn't be new. Was a great product, it's a shame.
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I live in a country where construction materials are expressed in metric and inches at the same time (2"x4"x 3.2 meters), and I think and build in inches using U.S. plans (because at the end of the day all the materials are rounded in inches, even if expressed in metric at the store). You can imagine how much time I spend converting things between the two systems. This is totally paid for itself in shear time and errors about 1,000 times over in the short while I have had it.

Not crazy about the case, but it does protect it. In fact I might buy like a fold out sell phone case so I can take some notes and such for it.

So, I am seriously considering ordering another in the event I loose one or at least have another handy.
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THis calculator is great for adding fractions. I had a job with lots of fractional measurements, and it was accurate and saved me lots of time rather than working with pencil and paper manipulating fractional measurements.
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Saves time adding mixed fractions, along with adding feet and inches. A more expensive one by the same manufacturer has a few more features but this one does exactly what I want without a large learning curve.
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