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Availability:
In Stock.
Arrives
Tuesday, Sep 8
Recently Viewed
Color: Jet Black
Features
- 82MS Multifunctional Scientific Calculator: ROATEE professional science calculator covers 240 functions,including General math, Statistics and regressioncal culations, Scientific Functions, Scientific Computation and it has memory function calculation more user-friendly. Suitable for High/Middle School Students
- Scientific Calculator with Notepad: This scientific calculator for school and business intergrates calculation and notebook with a stylus pen. The lcd writing tablet enables you to take notes during the calculation, which do great help for study and work. NOTE: Only Unlock the LOCK KEY will the writing area and the erase button work
- Multiview: display shows 2 calculations at the same time on screen, greatly improves computational efficiency
- Anti-Drop Body with High Durability and Portable: The body of this scientific calculator undergoes rigorous quality tests. Due to the design of anti-drop body, no need to worry about the damage by accidentally falling and it has only weighs 5 ounces and It can be folded so it's more easier to put in your pocket, which is convenient for business and school
- Dual Power Solar Panel & Coin Battery: The replaceble coin battery is built in this scientific calculator. It is also powered by solar energy so you don't need to worry about battery depletion
- What Will You Get?: 82MS scientific calculator*1,instructions*1,exquisite packing box*1,packing case*1.
Description
Reliable & Innovative ROATEE is dedicated to creating high-quality calculators designed to support students and professionals. We focus on providing educational tools that help students achieve excellent results while meeting the practical needs of users. We are committed to sustainability, ensuring that they are not only practical and efficient, but also environmentally responsible. Construction Calculator with Writingpad Our scientific calculator for school and business intergrates calculation and notebook with a stylus pen. The lcd writing tablet enables you to take notes during the calculation, which do great help for study and work The body of this scientific calculator undergoes rigorous quality tests. Due to the design of anti-drop body, no need to worry about the damage by accidentally falling and it has only weighs 5 ounces can be easily put in your pocket, which is convenient for business and school Our products are ClimatePartner Carbon Neutral Certified This scientific calculator combines calculation with notebook, which is more convenient for us to do calculation in the process of study and work. And it also do great help to save paper. This scientific calculators with Notepad features a lock key, which can prevent your notes from accidentally erasing. TIPS: This calculator is made of high quality and durable ABS material which is heat resistant and shockproof. It adopts premium plastic material key, which makes it more sensitive and precise for you to do calculation. Bulit-in solar panel and coin battery. No need to worry about running out the battery. You can put the stylus pen in the slot of calculator. Easy to take out and no need to worry about losing the pen. Please check the Detailed User Manual on the product page. 991ES 991EX 991ES MAX 991ES MAX 82MS 36X Pro 401-991 MS
Brand: ROATEE
Color: Jet Black
Calculator Type: Engineering/Scientific
Power Source: Battery Powered
Screen Size: 3
Brand: ROATEE
Model Name: AB0607-U-5D-1002
Unit Count: 1 Count
Number of Packs: 1
Manufacturer: ROATEE
Number of Items: 1
Model Number: AB0607
Mfr Part Number: AB0607
Calculator Type: Engineering/Scientific
Power Source: Battery Powered
Screen Size: 3
Number of Batteries: 1 C batteries required. (included)
Display Type: LCD
Color: Jet Black
Enclosure Material: Plastic
Item Dimensions L x W: 6.31"L x 3.3"W
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Sep 8
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Jet Black
purchased this scientific calculator for my daughter, who is in eighth grade, and it has been such a great buy! She absolutely loves it and uses it daily for her math classes. The layout is clear and easy to understand, with all the functions she needs for algebra and beyond. It’s not overly complicated, but still advanced enough to handle the more complex problems she’s starting to learn. She says the buttons respond smoothly and the display is easy to read, even when working through long equations. It feels sturdy and well-made, so I know it will last her through middle school and into high school. I also appreciate that it’s lightweight and portable, so she can keep it in her backpack without it taking up much space. Overall, it’s a reliable, user-friendly tool that makes her feel confident in her work. Five out of five—definitely worth it for any student!
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Reviewed in the United States on October 1, 2025 by Asia morrill
Color: Black
I picked up the 991ES Scientific Calculator with the attached drawing notepad for my college engineering classes, and it’s honestly one of the best study tools I’ve ever owned. The calculator itself performs just like any high-end Casio — fast, accurate, and easy to use. Very good for the price and It handles complex equations, trig functions, and conversions with zero lag, and the display is super clear with a natural textbook format that makes it easy to follow along with formulas. What really makes this setup shine is the notepad that’s built into it. I didn’t realize how useful it would be until I started using it every day. The magnetic stylus feels smooth, and being able to jot down quick notes, steps, or rough sketches right next to the calculator saves a ton of time. I use it constantly for solving statics problems and quick trigonometry sketches without flipping through my notebook. The build quality is solid, too. The buttons have that perfect clicky feel, the cover slides smoothly, and the notepad erases completely clean every time. It’s lightweight but feels sturdy enough to toss in my backpack without worrying about it. If you’re a student in math, physics, or engineering, this combo is worth it. Having both a professional-grade calculator and a small reusable notepad in one compact setup makes studying and problem-solving so much easier. I honestly wish I had bought it sooner — it’s one of those tools that just makes schoolwork smoother and more enjoyable.
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Reviewed in the United States on October 9, 2025 by John S
Color: Jet Black
Works awesome. My son loved it .
Reviewed in the United States on July 30, 2026 by Melody Martinez
Color: Black
First off, this is NOT a review by a "paid" reviewer, or in exchange for a free product I received. I see quite a few reviews in exchange for a free calculator in this listing, so I suspect the company is new and trying to get the word out about their product. This calculator caught my eye because it appeared to be an more feature-rich version of several recent competitor models that have the write/erase slate (the "e-writer") feature. Disclosure: I'm a die-hard Hewlett-Packard calculator collector, so my preference is always for RPN-based calculators, but I do think highly of the Casio 991ES/EX models, and so I decided to take a chance and check out this one. It's possible this is a legitimate re-badged or Casio-licensed version of the 991ES Plus, sold by ROATEE, but I'm unaware of whether it is or is not, so I can't speak to that here. The calculator arrived in a very nice, sturdy box, reminding me of the kind of quality you get from an Apple product. White cardboard, form-fitted, and well protective. Opening it revealed the calculator and a beefy 72 page manual in very good English (I believe this might be taken verbatim from another manufacturer). This was not your typical single page manual like in most inexpensive calculators. The calculator itself appears to be well made and surprisingly thick and solid. I have a couple of other write/erase slate calculators which are significantly thinner, so it's interesting that this one is much thicker (probably about 15cm closed). It is held closed by a magnet, so the slate doesn't flop around like with others. The slate does not flip around the back, so it lays like a book on your desk. The calculator side contains the stylus in the lower right corner, firmly inserted. The top edge includes the battery compartment and the lock/unlock switch for the slate (more about this in a second). I'm surprised at the reviews who say they couldn't find the stylus or lock switch, because both are pretty obvious, and well called out in the first few pages of the manual. An imprinted legend on the back shows the position for the lock and unlock switch. The slate itself is pretty standard. I think the green "ink" could be a bit brighter, but it's very clear in bright light (classroom), and readable in low light, but a bit harder. The "clear" button is mounted on the calculator side as a round button at the top, above the screen. If the slate is unlocked, then pressing that button instantly clears the slate. If locked, then pressing the button does nothing. This is one of the better reasons to get this calculator; most competitors do not have the lock/unlock feature, and it's far too easy to wipe the slate by accident. This will not happen with this model, and it's really a must-have for this category of device. The electrical connection from panel to panel for erasing the screen is via a small copper flex ribbon cable near the upper hinge. It's possible that over time this ribbon cable could wear out and break, but it's super small, doesn't poke out, and it will likely be fine for life of the calculator. The calculator itself is VERY similar to the 991EX ClassWiz calculator, and functionally IDENTICAL to the 991ES Plus model, in terms of button and function placement. For example, on this version the RCL button is the default (face value), while STO is the shifted function, which is the same as the ES Plus model, whereas the EX model has them swapped. Comparing to the ES model, every button is in the same spot. Compared with the EX model, most are in the same spot, although the top row is a bit different. If you are familiar with the layout of either of the 991ES/EX family, you probably won't even notice a difference. Capabilities notably missing from this model, which are in the EX model, are the spreadsheet feature, the graphic "menu" in the mode screen, the super handy "QR" code feature in the Casio [really one of the best and most powerful Casio features!], more screen lines, more memory, and some additional helpful screens and more functions. 99% of the population, including Casio users, won't notice the missing EX features. I did not have the two-left-parenthesis problem with the keyboard that one user mentioned. The keys themselves are pretty typical for this type of product, and work well, with a sculpted edge to the shape of the keys. No missed or double presses, no super wiggly keys, etc. It's not an HP keyboard, but it's decent enough. :) The surface of the calculator is very similar to the EX model, with the textured matte black surface. The key legend colors are okay, but not super bright (the Casio colors are marginally better). Personally, I think the calculator looks very nice and professional, and has a good feel to it. It's lightyears better than the ES family, which has a semi-glossy black surface and picks up fingerprints like crazy. I'm a bit puzzled why it's so thick, given that virtually every similar model is thinner, but honestly, I think I like a bit of heft to it. It feels substantial and robust in the hand. Maybe it's just because of the stylus storage. My biggest complaint on this model is that the manual refers many features to the "Appendix", which is apparently a separate document that was not included. I'm not sure if that was intentional or accidental, but it is a bit frustrating, because some essential information is in there. For example, if you want to use the Conversion feature, you must know which conversion equation you want, by number [1-40]. These are listed in the Appendix document, and NOT in the manual. You CAN look them up online, or refer to a Casio manual, but it's not convenient. Same for the Constants, but at least they are listed by name (not number) in the supplied manual. In the grand scheme of things, this isn't a deal killer, and anyone reading this and thinking about getting it shouldn't be deterred by the lack of the Appendix. Note: the Casio ES Plus lists them on the attached hard cover, while the EX model has a set of menus grouped by function names. On the ROATEE, you're going to have to write down the numbers for each factor somewhere or keep a legend if you use those frequently. Basically, this is a clone of the Casio ES Plus model, and shares a majority of the EX functions. I can live without the Spreadsheet feature, which is honestly clumsy in a calculator form factor, of the EX, but I will always miss the QR code feature. Alas, you can't have everything, and I suspect that feature is copyrighted/trademarked by Casio, which would explain why it's not included. The rest of the differences from the EX are fine as far as I'm concerned, so other than these two small omissions, and the missing Appendix, there is no reason to pass on this calculator. It's excellent for any non-graphical needs, from middle through high school. Price-wise, it's more than the original, but then again you get a cool slate for taking notes and writing down intermediate answers, while still having access to all the same functions you need and like from the original. Overall, I give this a thumbs up, and hope to see more from this company. Especially if they ever would consider producing an RPN edition for all of us math nuts who love RPN. :) Well done, ROATEE!
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Reviewed in the United States on October 12, 2022 by B. Bergman
Color: Light Pink
Greatest
Reviewed in the United States on August 24, 2026 by Gerard Garcia-Dubus
Color: Deep Black
The product was exactly as advertised and exceptional to every detail I'm very pleased with my purchase and I highly recommend this item. 5 star Bravo!!!
Reviewed in the United States on July 25, 2026 by Rickey Floyd Kemp
Color: Blue
Excellent great quality met my expectations love the color options
Reviewed in the United States on August 12, 2026 by Amazon Customer
Color: Black
Overall it's not a bad machine. It does what it's supposed to. Calculations are good with reliable results. Some of the keys aren't where I would prefer them to be. For example, I would have made OFF a shifted function of ON instead of pairing it with AC. I also would have put INS and DEL closer to the 4-way scroll buttons to make it easier to edit. Yes, those are minor but they are somewhat irritating. More importantly is the memo pad display isn't nearly as bright as shown in the picture. It's very dim under normal lighting. While it can be handy, I found myself looking for scrap paper to do intermediate calculations rather than using the green memo pad. And speaking of dim, the display wasn't as clear as other calculators in normal room light. I tinkered with the contrast but it never got crisp enough to be useful. The biggest thing I disliked was that the thickness of the calculator body and the memo pad were not the same. This made it uncomfortable to use it on a flat desk top. Had the two halves been equal thickness or if the hinge mechanism had been designed to accommodate the difference, I probably would have used it more. In the end, I gave it away. Overall rating: 4 out of 5. It works well as a calculator but there are some deficiencies in the overall design.
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Reviewed in the United States on February 10, 2026 by Bruce Alan Mcknight