By using your smartphone, Kinsa takes advantage of 25,000X the processing power of a regular digital thermometer – means there are virtually no electronics inside and no batteries required – so the thermometer is extremely lightweight and durable for carrying and always ready to use. Pay $14.99 with free shipping and returns. It also keeps track of past temps.
I love that there are no batteries required – that’s always been our issue – go to use it and dead battery so back to palm on forehead measuring…