Easy to see, easy to correct! Takes the frustrations out of calculations!

The Trackback Difference TrackBack calculators are business calculators that perform profit analysis with just 3 keys. The 2-line alphanumerical display clearly labels calculations and shows calculation history. The functionality to review, verify, and correct calculations and analysis is one of a kind. TrackBack calculators provide an undeniable upgrade in performance from the popular TI BA-20 Profit Manager.

The Trackback Difference 1.Review and correct Have you ever asked yourself, "Did I enter all values correctly?”, when hitting the Equal key after entering a long list of numbers? With the Trackback, even after completing a calculation, you can easily go back and correct entered values.

The Trackback Difference 2. No more guesswork Never have to repeat the tedious work of crunching numbers to verify your results. With Trackback, you can review and update entries just like you can in Excel.

The Trackback Difference 3. What you see is what you get Unlike traditional calculators, the Trackback will automatically calculate based on order of operation rules. For example, to calculate 7+7÷7+7x7-7, just enter the equation as written, and you’ll get the correct answer. The Trackback also displays text, allowing you to know the specific function being used, such as "Tax", "Profit", "Cost" and "Sell”.

The Trackback Difference entry trackback The Trackback can store up to 25 calculations with an average of 40 characters. Current entries can be reviewed with the left/right scroll keys and previous calculations can be recalled with the up/down scroll keys.

The Trackback Difference 5. 2-line alphanumerical display The Trackback’s large 2-line alphanumeric display combines the editing capability of spreadsheets with the simplicity of calculators.

DD line desktop Trackback up to 1,000 entries Extra large 2-line display: 11-digit dot matrix alphanumerical and 12-digit segment display Profit analyzer (cost, sell, profit) Tax calculation (tax rate programmable) Solar supplemental power Dimensions: 4.5 X 6.1 X 1 in (LxWxH)

DD line slim desktop Trackback up to 1,000 entries Extra large 2-line display: 11-digit dot matrix alphanumerical and 12-digit segment display Profit analyzer (cost, sell, profit) Tax calculation (tax rate programmable) Solar supplemental power Dimensions: 3.9 X 6.7 X 1 in (LxWxH)

DD line large desktop Trackback up to 1,000 entries Extra large 2-line display: 11-digit dot matrix alphanumerical and 12-digit segment display Profit analyzer (cost, sell, profit) Tax calculation (tax rate programmable) Solar supplemental power Dimensions: 5.5 X 7.5 X1.2 in (LxWxH)

DD line business full size desktop Trackback up to 1,000 entries Extra large adjustable 2-line display: 11-digit dot matrix alphanumerical and 12-digit segment display Profit analyzer (cost, sell, profit) Tax calculation (tax rate programmable) Currency conversion (rate programmable) Solar supplemental power Dimensions: 5.9 X 7.8 X1.5 in (LxWxH)

2-line business handheld Trackback up to 1,000 entries Extra large adjustable 2-line display: 11-digit dot matrix alphanumerical and 12-digit segment display Profit analyzer (cost, sell, profit) Tax calculation (tax rate programmable) Solar supplemental power Dimensions: 3 X 5 X 0.4 in (LxWxH) DH-1622

DD line business mini desktop Trackback up to 1,000 entries Extra large adjustable 2-line display: 11-digit dot matrix alphanumerical and 12-digit segment display Profit analyzer (cost, sell, profit) Tax calculation (tax rate programmable) Solar supplemental power Dimensions: 5.5 X 4 X 0.6 in (LxWxH)

DD line business desktop Trackback up to 1,000 entries Extra large adjustable 2-line display: 11-digit dot matrix alphanumerical and 12-digit segment display Profit analyzer (cost, sell, profit) Tax calculation (tax rate programmable) Solar supplemental power Dimensions: 6.9 X 4.7 X 1.2 in (LxWxH)

DD line business computer keyboard desktop Trackback up to 1,000 entries Extra large adjustable 2-line display: 11-digit dot matri alphanumerical and 12-digit segment display Profit analyzer (cost, sell, profit) Tax calculation (tax rate programmable) Currency conversion (rate programmable) Solar supplemental power Dimensions: 8 X 6.5 X 1.6 in (LxWxH)

Contacts Wayne Pi Tel: (California) Tel: (China) Mei Noguchi Tel: (New Jersey)