Ohm Electric 12-digit Business Calculator

[Features]
· Double power supply that uses both solar power and a button battery.
· The consumption tax rate setting can be changed. Still good even if the consumption tax rate is changed.
· A 12-digit display which can also be used for business.
· Memory: 3-key system memory
· Display details: Memory (M), minus sign (-), error (E), tax symbols (rate, amount, excluded, included), calculation symbols (+, -, ×, ÷)
· Error Check Method: Rough Estimation Response, and Calculation Stop after "E" Display
· Battery life: Approximately 2 years
· Automatic Power Off: About 10 Minutes
· Operating Temperature: 0°C to 40°C
· This product has a built-in solar battery and button battery. Normal use of solar cells includes the use of incandescent bulb lighting in addition to natural light.