Package Includes: Pulse oximeter with 2 AAA batteries and infrared thermometer with 2 AAA batteries Specification Oximeter: pulse strength indicator monitors heart rate; one-button operation; PR Waveform high-brightness OLED display; automatic shutoff Thermometer: tri-color backlit screen; color-coded fever result; stores up to 50 results with date stamp; automatic shutoff; Celsius and Fahrenheit readings Measurements: Oximeter 2.44" x 1.38" x 1.22"; Thermometer 3.5" x 1.5" x 5.5"