Sharp EL-240SB review
Twin-Powered Basic Hand-Held Calculator with Extra-Large Display.
Twin Power Solar Operation - automatically switches from solar to battery
power in low light.
Extra-large Display - 8-digit (13.5 mm) LCD display with punctuation.
3-Key Memory - includes memory plus, memory minus and recall/clear memory
keys.
Additional Features - percent square root keys and sign change keys, last
answer function, and slant display.