Helect 2-Line Engineering Scientific Calculator, Suitable for School and Business
Description
Professional grade scientific calculator with 240 scientific functions. Easily handles 1 and 2 variable statistical calculations, three angle modes (degrees, radians, and grads), and scientific/engineering notation modes
12-digit widescreen HD display. 2-line display shows inputs and results at the same time. Works efficiently and makes no mistake
Meets the ergonomics design and offers a comfortable grip. Responsive buttons, clear numbers, and scratch-proof
Solid sliding protective case covers either side of the calculator. Protects buttons and the device body
Package includes: Scientific Calculator*1, instructions
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Matthew Taylor –
Excellent value for a good quality product
Kim –
Great
AT –
Easy to use good value
developer1 –
I give this Helect calculator 4 stars because it is a pretty good clone of a Casio Scientific calculator. like the Casio FX 300MSPLUS2 – very similar. (So for about the same money. why not get the name brand?) The screen is pretty readable if you look straight down on the calculator. but looking from below (like when it is flat on a desk in front of you) the readability deteriorates with angle and the character background matrix starts showing. In comparison. the Casio FX-115es plus 2nd edition has blue characters on a bluish-greenish screen – less readable in my opinion..The Helect’s buttons are a little loose feeling but seem to work fine. But I found one strange behavior with the RCL memory function that caused me to send it back. I compared it to my FX-115es Plus 2nd edition which works as I expect. So it may be a small bug or variation in the Helect. not a show-stopper if you are attentive. but it tripped me up so back it goes..Here’s what the RCL button seems to do on the Helect: First I store two values. .05 in memory X and .02 in memory Y. Then I press “RCL X + RCL Y =” and it gives me .07. what I expect. Then I press “RCL Y + RCL X =” and it gives me something like .12 ! On my FX115. both operations give me .07. as I expect..The explanation seems to be that on the second calculation. when I press RCL Y and it displays “.02″. it isn’t putting .02 in the ANS memory – instead. it holds onto the last ANS which was .07. Then when I press ” + RCL X”. it adds X (.05) to .07. the old answer..Now there are several workarounds. If you try “RCL Y = + RCL X =” I think it works — the extra “=” forces Y into the ANS memory. Also. if you use the Alpha key to access the variables directly. such as:.”Alpha X + Alpha Y =” followed by “Alpha Y + Alpha X”. both computations give .07 . Using the alpha key seems to bypass the ANS memory and the problem doesn’t come up..Bottom line: the Helect works slightly differently than the Casio regarding the RCL button. and I’ll stick with Casio for consistency for now..Also I’ll mention. the truck had no air conditioning and everything in the order was roasting hot. probably over 115 deg F. The Helect didn’t turn on. I removed the batteries and saw corrosion on one terminal. Cleaning it restored power. but left me with a bad feeling.
Katie Tersmette –
Worked just as it should. thank you.
Pervez A. –
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Paula Lugg –
Great quality
melissa smith –
Great calculaters exactly what the kids need for school an exams.
Foysal A. –
Very good ?? quality
Erwin –
Great and value for money