Personal Weather Station TM005X-M. Reads indoor/outdoor temperature and humidity in up to three locations. Includes a single remote TS33C-M model sensor with 164 foot (50 meter) range. Expandable to monitor up to a total of three outside or remote locations with the addition of up to two more TS33C-M sensors, sold separately. All remote channels auto-scan when connected.
Requires two AA type batteries for the main unit and two AA batteries for the remote sensor. Batteries not included. Suggested operating temperature range is -40F to 122F (-40C to +50C) if using lithium type batteries. Reads humidity as percentage with a range from 20% to 95% and records minimum and maximum temperature and humidity for both indoor and outdoor locations. Wall or desk mountable.