Helect 2-Line Engineering Scientific Calculator, Suitable for School and Business (Black)

⭐⭐⭐⭐⭐ Great scientific calculator for the price. The two-line display makes it easy to see both the equation and the result at the same time, which is very convenient. The buttons are responsive, it’s easy to use, and the protective case is a nice bonus. A great choice for students or anyone who needs a reliable calculator for everyday use.

Great calculator for school age.

Exactamente lo que pedí

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 Amazon 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.

Excelente producto y de buena calidad..hasta el momento no a dado ningún problema

Works great

My son loves it

Excelente funcionamiento

Llevo unos días usando esta calculadora científica Helect H-1002 y sinceramente me ha sorprendido lo buena que es por el precio que tiene. Me costó 10,90 € con un 15 % de descuento, y no tiene nada que envidiar a otras marcas mucho más caras. ✅ Pantalla de dos líneas: se ve perfectamente el cálculo completo arriba y el resultado abajo, muy cómodo para repasar operaciones sin perderte. ✅ Teclado cómodo y preciso: las teclas tienen buen recorrido, no se quedan duras ni flojas. Se nota que está bien fabricada. ✅ Ideal para estudio o trabajo: vale tanto para estudiantes como para usarla en el día a día si trabajas con números. Tiene todas las funciones científicas necesarias y más. ✅ Diseño sólido: ligera pero robusta, con una tapa protectora que se desliza perfectamente. ✅ Buena autonomía: funciona con pila y energía solar, así que te olvidas de quedarte sin batería en mitad de un cálculo. He tenido varias calculadoras a lo largo del tiempo y, por el precio que cuesta, esta es una compra redonda. Cumple de sobra y transmite calidad desde el primer momento. La recomiendo totalmente, ya sea para el instituto, universidad o para tener una en casa o en el trabajo. 💡 Conclusión: por menos de 11 €, difícil encontrar algo tan completo. Una de esas compras que haces “por probar” y terminas recomendando a todos.

Parfait pour un étudiant en économie à l'université.

Util y facil de utilizar pesa muy poco ,recomendable

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