Stay cool with the Lollababy Infrared In-Ear Thermometer! The probe measures at 5.9mm, making it extremely suitable for gentle and quick temperature measurement for newborns. The large LCD screen and LED backlight makes measurements easy to read as well. Other features: • Quick. One-second ear measurement. • Easy Storage. Includes a portable case with built-in probe cover fixer. • Hygienic. Comes with 21 probe covers; replacements available for purchase at our estore. • Portable. Lightweight, runs on a CR2032 battery. In-Ear Thermometer Kit contains: • 1 Thermometer • 21 Probe Covers • 1 Storage Box • 1 CR2032 Battery