Monroe 8130 heavy-duty calculator overview

As the inventor of the commercial calculator in 1912, Monroe has earned the trust of Fortune 500 companies, non-profit organizations and government agencies, including the likes of NASA. Even Hollywood has recognized the strength of the Monroe brand as its products have landed on major television networks and hit series including the show Madmen. The standard for heavy-duty desktop calculators, the Monroe 8130 serves as the entry level heavy-duty model with one of the strongest followings as it was preceded by the extremely popular 4130, 5130, and 7130 models. This model is available in black or ivory colors, lives in a rugged body, offers a print speed of 5 lines per second, and has a smooth key touch. Unique to Monroe, the heavy-duty models are equipped with an enclosed paper roll (to protect from dust build up around the printer), indicator lamp (making users aware of an active calculation), and an automatic total print above the tear off knife. Monroe even thought to incorporate storage for a spare paper roll, and both a twin-spooled ribbon and automatic cartridge ribbon underneath the machine to reduce downtime. Functionally, it has an independent memory that stores tax rates and allows for independent operation of multiplication and division, enabling the user to multiply and divide during addition and subtraction. This model is most popular within casino cages and supermarket chains due to their constant demand for a calculator that can run 24 hours a day 7 days a week without failure. The Monroe 8130 has proven itself to outlast and outperform any other competing model available. Those who know, choose Monroe.

12-Digit Print/Display
4-Key Independent Memory
Group, Grand Total, Tax, Tax + and Tax -, N-Count, Mark-up, Mark-down
Percent, % +, % -, Percent change
Decimal Settings: +, F, 0, 1, 2, 3, 4, 6
Backspace and Error Correct Features
Black & Red Print with Print Speed of 5 Lines per Second
Additional Key Functions: Enclosed Paper Roll, Spare Supplies Storage Areas, Indicator Lamps (for the adding machine and grand total registers), Two Column Addition, and more.
Most popular within casino cages and supermarket chains due to its unfailing durability.

Specifications:
Type: Desktop Print/Display
Color: Ivory or Black
Capacity: 12-digit print/display, 24-digit calculating
Print Speed: 5.0 lines per second
Display Type/Color: Fluorescent, Green
Inking System: Black/Red Ribbon Cartridge or Spools
Keyboard: 10 key numeric pad, 00 and decimal point
Decimal Settings: +, F, 0, 1, 2, 3, 4, 6
Non-Add/Date Function: Yes, print entered reference number or date
Memory(s): (1) 4-Key Independent
Rounding: Truncate, 5/4 Round Off, Round Up
Constants: Yes, automatic
Percent: Yes, with %+ and %- capability
Tax: Yes, with Tax+ and Tax- capability
Grand Total: Yes, Group and Grand Total
Item Count: Yes, Intelligent item count, Automatic averaging
Backspace: Yes
Percent Change: Yes, computes amount and % of change
Mark up: Yes, computes Cost, Sell and Margin
Square Root: Yes, entry followed by divide then equals
Change Sign: N/A
Dimensions L”xW”xH”: 15.3” x 9.5” x 3.7”
Weight (lbs): 4.08 lbs
Paper: 2 1/4” Single or Two-Ply Paper Tape
Ribbon: P51S (Super Saturated Cartridge) or P65M (Twin Spools)
Additional Key Functions: Enclosed Paper Roll, Spare Supplies Storage Areas, Indicator Lamps (for the adding machine and grand total registers), Two Column Addition, Black models contain recycled plastic. Much more.
Calculators being substituted for the Monroe 8130 line:

Canon: CP1200DII

Sharp: CS-2850A

Victor: 1460-4 Extra Heavy-Duty, 1530-6 Two-Color, 1560-6 Two-Color

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