This hygrothermograph's scroll mode allows you to view the indoor thermometer/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 switches for channel selection and units of measure (degF vs degC).The sensor search mode allows you to re-sync 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: 0~60C / 32~140F. - Outdoor Temperature Measurement: -40~60C / -40~140F. - Temperature Accuracy: 1C. - Humidity Accuracy: 5%. - Indoor/Outdoor Humidity range: 10% to 99%. -Frequency: 433 MHz. - Update Rate: 60 seconds. -Comfort level and rate of change indicators Scroll mode automatically. - Displays each sensor every 5 seconds. Dip switch selectable remote channels Re-sync mode, if sensor reception is interrupted. Min/Max Memory for indoor/outdoor temperature humidity Monitors temperature and humidity in up to 8 remote locations Included remote sensor (TS-WS-07-XF). - Transmission range of up to 300 feet line of sight (100 feet under most onditions).