What It Is Used For

Tuberculosis Testing: Veterinarians use it to check for skin swelling after a tuberculin skin test in cattle and other livestock.
Allergy and Immune Tests: It measures localized allergic reactions or immune responses by comparing skin thickness before and after testing.
General Livestock Care: It helps monitor changes in animal skin or tissue, such as teat conditions in dairy animals.
Design: Often shaped like a pistol or caliper with spring-loaded jaws that apply a consistent pressure to the skin fold.
Types: Available in analog (dial/clock face) or digital LCD screen models.
Precision: Typically measures down to 0.01 mm or 0.1 mm accuracy with a range usually spanning up to 40 mm.