Features:

Indoor or Outdoor Temperature Sensor
Weather Resistant

Specifications:

Temperature range: -40øF to 140øF (-40 øC to 60 øC)
Transmission range: Up to 330 feet
Transmission frequency: 433 MHz

Power Requirements:

2 "AA" Alkaline batteries (not included)

Dimensions: 1.58" H x 0.83" W x 5.08" D