The thermometer is mini type, high definition LCD digital screen, multi-function thermometer, hygrometer, clock display. Smart chip, both sides have air hole for temperature perception, fast and accurate reaction. Features: Large LCD screen, multi-function. Multi-function thermometer, hygrometer, clock display. Automatic recording of max/min temperature and humidity value. 12h or 24h time display, one-touch manual operation. C/F temperature unit changeable. Replaceable cell, simple and easy. Both sides have air hole, intelligent temperature perception. The back has a stand, stays upright and prevents the stem and falling. Desktop placement or wall mounted. Low power consumption, high stability and accuracy. Specifications: Model: HTC-1S, HTC-1 (optional) Color: White Temperature Range: Indoor & Outdoor -50 ~ +70 (-58 ~ +158F) Humidity Range: 10% ~ 99% RH Cell: 1 * AAA Battery, 1.5V 750mAh (included) Package Weight: 130g / 4.59ounces 150g / 5.29ounces Package Size: 105 * 98 * 20mm / 4.13 * 3.86 * 0.79inch 173 * 158 * 35mm / 6.81 * 6.22 * 1.38inch Packing List: 1 * Thermometer