Display dual-LCD Rel. Humidity Range 0 to 100% rel. humidity Resolution 0.1% Tolerance ±3% rel. humidity Temperature Range -20 to +50°C/-4 to +140°F Resolution 0.1°C/0.1°F Tolerance ±0.6°C/±1°F Dimensions 175 x 42 x 16 mm Weight approx. 120 g