Ambient Weather WS-091-C Wireless Indoor/Outdoor 8-Channel Thermometer with Daily Min/Max Display, Console Only

Indoor/Outdoor temperature (sensors sold seperately)
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 resets daily or manually Monitors temperature and humidity in up to 8 remote locations
Sensors sold separately (F007T, F007TP, F007PF) - transmission range of up to 300 feet line of sight (100 feet under most conditions)
Frequency: 433 MHz
Update Rate: 60 seconds
Console Dimensions (LxHxW): 4.50 x 5.0 x 1.00 in
LCD Dimensions (LxW): 3.75 x 3.50"
Power requirements:
Main Unit - 4 x AAA (not included)