New Turtle Design! The Tubby Tester is a stock designed Tub Temperature Card with a stock Crystal. The card is used in addition to the elbow test when testing the temperature of tub water. Children's hospitals, pediatricians, power companies and...
UV Detector Card is on .030 laminated plastic for durability and higher perceived value. The UV ink is Photochromic ink that changes color when exposed to UV light. This technology appears colorless in normal lighting conditions but vibrant when...