The Honeywell TC681ELW Dual View Wireless Digital Weather Station with Analog Quartz Clock combines a classic Analog clock with a high-tech digital weather station that can monitor up to three remote locations/ With the main display unit measuring 8.1 x 4.55 x 1.49 inches (WxHxD), the TC681ELW has three-channel remote sensor capacity and comes with one TS33C wireless sensor with a transmission range of approximately 200 feet. The weather station can auto-scan all three remote channels. (Additional sensors are sold separately.)