Oregon Scientific Wireless Temperature & Humidity Sensor with Clock (RTGR328N). This sensor features a water-resistant design with LCD that shows the current time, temperature, and humidity.

Features

• 5 Channel Sensor for WRB308, AWS888, BAR321, BAR988, MR328, BAR933 , BAR926, BAR826
• Operating Temperature is-4˚F to +140.0˚F
• Batteries Included: 2 AA 

Note: Replacement Sensor ONLY. For models which include radio controlled signal in the external sensor.