eBay

Features
1. Dual power supply mode: support 3V button battery or USB interface 5V power supply, more flexible and convenient to use.
2. practical functions: with basic arithmetic operations and color ring resistance value conversion, suitable for learning and work
3. Easy to assemble design: PCB board has clear markings, welding time 1-2 hours, suitable for beginners to practice
4. Transparent acrylic shell: beautiful and elegant, the internal circuit at a glance, enhance the desktop decorative effect
5. Automatic hibernation energy saving: long time no operation automatically enter the hibernation mode, prolong the battery service life

Specification
Product name: calculator kit
Supply voltage: 3V button battery or USB interface 5V power supply
Product size: 90*128*19mm
Circuit size: 78*112mm

Instructions for use
Power on the default sleep mode, press the “C” key to enter the working mode, no operation for a long time automatically enter the sleep mode, calculation errors or over the range of the display “E”, in the case of two operands are 0, press the “=” color ring resistance calculation. Press “=” in case both operands are 0, the color ring resistor calculation mode will automatically identify the 4-color ring or 5-color ring.
The first digit of the first position indicates the unit of “Ω”, the middle one indicates the unit of “kΩ”, and the bottom one indicates the unit of “MΩ”.

Note
1. Addition, subtraction, multiplication, division operation of negative numbers, the function of continuous calculation over the calculation range will be reported as an error, the color ring resistor resistance value conversion input the number of colors to automatically identify the 4-color ring or 5-color ring.
2. Power cord power supply and button battery can not be powered at the same time, will damage the button battery.

Package Includes
1 x Calculator kit

Shipping
Feedback
Contact us
Return Policy

Shipping

Domestic
We believe you need to get your purchases as quick as possible. As a general rule your item will be shipped within 24 hours of you purchasing it. We pack and post from Tuesday to Sunday (Mondays we are closed) but definitely get all our mail off to the post office first thing Monday morning for you. Mail gets picked up at 12pm so chances are if you buy before lunchtime your item will leave the same day.

International
Same as above but understand that depending on what part of the world you are from it does take a little longer to send, delivery can be from 7-15 working days. Also other factors to take into consideration are quarantine and customs regulations in your country. It is also a consideration that customs duties and GST/VAT may be payable at the buyers expense.

Combined Postage (for items with shipping charges):
We are more than happy to combine postage, just use the Buy it Now function in eBay (but DO NOT PAY after purchasing each item) to buy all the products you need, when you have finished request a combined invoice, we will base the shipping cost on the size, weight and your location.

Feedback

Your Satisfaction is our Priority. Our goal is to make all our customers as happy as possible while shopping with us.

For anything problem about product, price, shipping or order status, pleasecontact us via eBay message.Just contact us using the " Ask the seller a question" link on eBay.
We expect positive feedback and 5 scores DSR from you.

Return Policy

We believe our items are so outstanding. We are convinced you will be happy with your Purchase.
If you do not satisfy with our items. Please simply return to us within 30 Days in original condition. Just pay for the returned postage. Then we can issue full refund to you after the returned item arrived at our warehouse.
Please include your eBay ID and item number with any email requests.