1. INDOOR: 0C~+50C(+14F~122F); OUTDOOR: 50C~+70C(-58F to +158F); Humidity: 15%~95%(RH)2. Accuracy: +/-1C(1.8F)at the temperature of 15C ~35C(59F~95F); +/-5% at the temperature of 15C ~35C(59F~95F) and the humidity of 40%~80%, +8% at the remaining range. 3. Resolution¡ RTemperature 1C(1 F); Humidity 1%. 4. In/out. 5. Unit Size: 108x100x22mm, Display size: 80x60mm6. Hygrometer: 0-39% display"dry" 40-65% dispaly"Comfort" 66-95% display"wet" Company: I-Cute Technology Ltd.