This hygrothermograph's scroll mode allows you to view the indoor /hygrometer and remote channels without pressing any buttons. In scroll mode, all of the indoor and detected outdoor sensors will be displayed in five second intervals. Each remote sensor includes dip for channel selection and units of measure (degF vs degC). The sensor search mode allows you to re- sensors without removing and re-inserting batteries. Feature - Color: As Shown. - Material: LCD+Electronic Component+Plastic. - Size: 11.5 x 12.5 x 2cm. - Display: LCD. - Indoor Temperature Measurement: 0~60 degree centigrade / 32~140°F. - Outdoor Temperature Measurement: -40~60 degree centigrade / -40~140°F. - Temperature Accuracy: ±1 degree centigrade. - Humidity Accuracy: ±5%. - Indoor/Outdoor Humidity range: 10% to . - Frequency: 433 MHz. - Update Rate: 60 seconds. - Comfort level and rate of change indicators Scroll mode automatically. - Displays each sensor every 5 seconds. Dip selectable remote channels Re- mode, if sensor reception is interrupted. Min/Max Memory for indoor/outdoor temperature & humidity Monitors temperature and humidity to 8 remote locations Included remote sensor ( - -07- ). - Transmission range of up to 300 feet (100 feet under most onditions). Package list: 2 x Hygrothermograph 2 x User's Manual