Display Dual-LCD, 3 1/2-digit Rel. Humidity Range 5 to 95% Resolution 0,1% Tolerance ± 3% rel. humidity Response Time < 3 min. Temperature Range -20 to +60°C / -4 to +140°F Resolution 0,1°C / 0,1°F Tolerance ± 0,8°C / ± 1.6°F Response Time < 10 sec. Power Supply 1 x 9 V IEC 6LR61 or 6F22 Dimensions 240 x 54 x 34 mm Weight approx. 180 g