... Description Digital In/outdoor Thermometer and Indoor hygrometer (Comfort Zone Indicator, / selection, Max/Min Memory, Hi/Lo alert set, with Stand or Wall Mount ... Japanese sensor, Taiwanese IC, PC lens, outdoor wire cable, AAA battery x 3pcs.Measurement Range: Indoor: 0 to 50 / -32 to 122 ... ; Outdoor: -50 to 70 / -58 to 158 ...