Temperature displays are user-selectable for ºF or ºC – Time is displayed in 12-hour format with PM indicator, or in 24 hour format – Clock has a daily alarm with available 10-minute snooze function – Wireless 433MHz transmission of outdoor temperature from remote sensor up to 100 feet away – Sensor is included – Low-battery icons for the display and the remote – Can be wall-mounted or free-standing – * Indoor temperature measuring range: +32ºF to +122ºF (0ºC to +50ºC) – Outdoor temperature measuring range: -4ºF to +122ºF (-20ºC to +50ºC) with alkaline batteries – Temperature resolution: 0.1ºF/C – Remote sensor transmission range: 100 feet (33 meters) maximum in open space with no interference – Display unit power requirements: two AAA (1.5V) alkaline batteries – Remote power requirements: two AA (1.5V) – Alkaline batteries. For use in temperatures below 20ºF (-20ºC), install lithium AA batteries instead of alkaline – Display dimensions: Height: 4 inches – Width: 2 3/4 inches – Depth: 1 1/8 inch – Sensor dimensions: Height: 4 inches – Width: 2 1/2 inches – Depth 1 1/8 inch