Dear customers:
Thanks to everyone for your support and favor over the past year. Spring Festival is coming soon， in order to ensure all customers 
shopping needs， we hereby notify the holiday arrangements:All the orders after 13th， Feb.2015 will be arranged to ship after 22nd，
Feb.2015. And there's no customer service from 18th， Feb22nd，Feb，2015， please be understanding.wish you have a happy New
Year for all of you ， thanks  !!!!!



Margin calculation
ADD2 mode
Decimal selector
+/- (Plus or minus conversion): the positive (+) to negative (-)， or use reverse conversion
Values used to calculate the square root of the display: √ (square root)
Automatic rounding setting
Decimal selector: You can specify the number of decimal places the end of treatment. Such as: the first two decimal rounded off
Double Zero Key: You can quickly calculate multi-digit
Abdicated button: input error correction is very convenient， from the last bit of value to the gradual elimination
Calculation mode display: The screen displays four operations and usage of memory
3 comma tag
Memory Memory
In percentage terms
Plastic buttons
Automatic shutdown
Dimensions: see Figure