Vicks Baby Rectal Thermometer with Flexible Tip and Waterproof Design, V934 - Walmart.com
Choosing the right thermometer to check your baby's fever: photo guide - BabyCenter India
Amazon.com: Baby Rectal Thermometer with Fever Indicator - Easy@Home Perfect Newborn and Infant Digital Thermometer with LCD Display Reading Body Temperature-Kid and Baby Item with Accurate Fast Reading - EMT-027 : Health
Quick-Read Digital Rectal Thermometer – Frida | The fuss stops here.
How to Take Your Child's Temperature - HealthyChildren.org