No Battery Required, for power on just turn the roller 6-8 rounds before use!
Happy Blue Dolphin - The simplest way to measure body temperature. Just turn the roller 6-8 rounds before use, which requires no batteries, then you can check body temperature and read the result in instant time without accuracy compromise.
Safe and Environmentally-Friendly - The ROLLER DIGITAL THERMOMETER uses rotary principle for power supply which requires no battery and is mercury-free.
Child's Favorite Animal-shaped - Happy Blue Dolphin, Brave Whale and Lovely Seal, three popular model choice.
LCD Digital Display for Easy Reading
Bendable Tip - Which allows to adjust an perfect angle to measure temperature comfy and accurately.
Always show the highest temperature during measuring.
10 Seconds quick measurement - measurement is completed with a Bi Bi Bi sound.
Applications - Oral, Underarm, Rectal temperature measuring. Suitable for Adults and Children.