| 摘要 |
The present invention relates to a portable device for pool operation management. The portable device can be used for determining basic mathematical calculations, pool surface area, pool volume, chemical adjustments and breakpoint superchlorination from measured and entered inputs. In one embodiment, the device includes and LCD display for entering inputs and displaying results. The portable device and also include input devices of a ten digit keypad (0-9), decimal point key, math operation keys (+, −, ×, ÷), mode key, directional arrow keys, on/clear key, enter key and back key.
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