10 digit LCD display with large 10mm digits. Features 20 built-in metric conversion functions including: length, area, capacity, weight, volume, energy and temperature conversions. Other functions include: backspace, change sign, percent, square root keys and 3 key independent memory. Operates on hybrid power (solar/battery backup). 2 year manufacturer’s standard warranty. 5-1⁄2"H x 2-3⁄4"W x 1⁄4"D.