HTC brings brilliance to life through innovation in smart mobile device and experience design. Beginning with a vision to put a personal computer in the palm of our customers' hands, we have led the way in the evolution from palm PC to smartphone. The Pursuit of Brilliance is at the heart of everything we do, inspiring design and game-changing mobile experiences for consumers around the world. At HTC, the Pursuit of Brilliance is the impulse to create, to venture into the unknown with an unwavering dedication to bring innovative design to life. It pushes us everyday to re-imagine new ways to connect the world, our consumers, and their pursuits in ways never before thought possible. Features:- Big display thermo or hygrometer with clock large 2 line LCD display. Temperature Range: -50 degree Celsius ~ 70 degree Celsius (-58 degree Fahrenheit ~ 158 degree Fahrenheit) temperature. Accuracy: +0.5 degree Celsius (0 degree Celsius ~ 40 degree Celsius) or +1 percent. Humidity Range: 10 percent ~ 99 percent RH. Humidity Accuracy: +3 percent RH (50 percent ~ 80 percent) or +5 percent. Battery: AAA 1.5V. Time or temperature or humidity indicate. Temperature reading for  degree Fahrenheit and amp,  degree Celsius. Maximum and minimum temperature and humidity memory. Calendar with alarm clock.