Honeywell TC681ELW Dual View Wireless Digital Weather Station with Analog Quartz Clock Economical way to monitor indoor and outdoor temperature, barometric pressure and more for up to three locations Wireless sensor has transmission range of up to 200 feet Measures temperatures to as low as minus 38 degrees Fahrenheit and up to 158 degrees Fahrenheit Quartz clock includes crescendo alarm with snooze function and a LED backlight Measures 8.1 x 4.55 x 1.49 inches (WxHxD)