Protect your portable Doppler with this easy trick.
To protect our portable Doppler from liquids such as scrub solution, blood, and urine, we cut a small opening for the cord in the end of a quart-size refrigerator storage bag and slip the bag over the unit. You can see the buttons easily, it doesn't inhibit the sound, and the bag can be replaced easily and cheaply.
—Joan Primeau, DVM
A Pet's Place Animal Hospital
Longmont, Colo