FAQ
Frequently Asked Questions (FAQ)
Products & Stock
What if the model I want is out of stock?
Sign up for restock notifications to get an alert when the product becomes available again. Please note that some of our calculator models are produced in limited quantities, so we recommend purchasing early to ensure availability.
How do I choose the right calculator?
Different calculators are designed for different purposes. Basic calculators are ideal for everyday use, scientific calculators are suitable for students and exams, and graphing calculators are best for engineering, programming, and advanced mathematics. If you are unsure which one fits your needs, check the product page for specifications or contact our support team.
What power sources do your calculators use?
Our calculators support various power sources, including solar power, button cell batteries, and rechargeable lithium batteries. Please refer to the product details page for specific information.
Features & Usage
How long do the calculator keys last?
Our calculators are made from high-quality materials, and the keys are rigorously tested to withstand millions of presses, ensuring long-term durability.
How do I adjust the display brightness?
Most calculators adjust brightness based on ambient light, especially solar-powered models. If your calculator has a backlight feature, you can adjust the brightness in the settings menu.
Can I use this calculator for standardized exams?
Different exams have different calculator policies. For example, SAT, ACT, and AP exams may allow certain calculator models, while CFA or GMAT exams may have stricter rules. Please check the official exam policies before purchasing.
How do I reset my calculator?
You can reset your calculator using one of the following methods:
- Press and hold the Reset button (if available).
- Navigate to the settings menu and select "Restore Factory Settings."
- Remove the battery and wait a few minutes before reinstalling it.
For specific instructions, refer to the product manual.
Returns & Warranty
Can I return my calculator if there is an issue?
We accept returns and exchanges within 30 days of purchase, provided the product is unused and in its original packaging. Please refer to our Return Policy page for details.
What should I do if my calculator is defective?
We offer a 1-year warranty covering functional defects that are not caused by human damage. If your calculator malfunctions within the warranty period, please contact our support team with your proof of purchase to request a repair or replacement.
Who pays for return shipping?
For non-defective returns, the customer is responsible for return shipping costs. If the return is due to a product defect, we will cover the return shipping fees.
Maintenance & Repairs
How do I clean my calculator?
- Use a dry, soft cloth to wipe the screen and buttons to prevent scratches.
- You can use a slightly damp cloth to clean the body but avoid getting moisture inside the device.
- Do not use alcohol, harsh chemicals, or corrosive cleaning agents.
What if my calculator is damaged from a fall?
If your calculator is dropped and the screen or buttons stop working, you can contact our repair center for an assessment. Some models may support component replacement.
Shipping & Orders
Do you offer international shipping?
Yes, we provide worldwide shipping. Shipping fees and duties will be calculated at checkout. Please visit our Shipping Policy page for more details.
How can I track my order?
After purchase, you will receive an email with a tracking number. You can use this number to check your order status on our website or the courier’s website.
Do you offer bulk purchase discounts?
Yes, if you need to purchase calculators in bulk (for schools, businesses, or government institutions), please get in touch with our sales team for wholesale pricing and custom solutions.
Other Questions
Are your calculators environmentally friendly?
We are committed to sustainable manufacturing. Some of our models use recyclable materials and solar power to reduce battery waste.
Do you offer personalized engraving services?
Currently, we offer engraving services for select models, which is ideal for corporate gifts, school awards, and more. Please get in touch with our customer support team for details.
How can I contact you?
You can reach us through the following channels:
📧 Email: support@tianyancalculators.com
🌐 Website: www.tianyancalculators.com