Originally Posted by G and K's Mom
We just use a human digital one and put a string and clip on it. Any drugstore. You don't need anything "special".
Human ones can be tricky, so be careful!
Most digital human thermometers are set to take the temperature orally (the mouth) or under the armpit--NOT rectally, which is what we do for horsies (eww.) Therefore, you will not get the most accurate reading.
However! I have a digital thermometer that I got at riteaid that I LOVE. It saves up to 20 temperatures (I think?), has a cord on it ALREADY, and you can set it to rectal temperatures. It beeps if the temp is over 99.5 (... so if it doesn't beep you're in trouble!), but here's the best part-- SIX SECOND READINGS.
No more two minute waits!
Here's a link for this little Wonder Tool: Shop online Vicks Pro-Style Professional Thermometer, Model: V940 - 1 ea at AmericaRx.com