Number Thermo Patch WR-Combination 120 pieces 1 box (120 pieces)

It uses reversible thermo ink, and when heated, numbers indicating specific temperatures (for example 50°C, 60°C, etc.) appear sharply. Once the temperature drops, it will return to its original color and can be reused. The back of the number patch has a heat-resistant adhesive applied. Heat-resistant films are sandwiched together, providing excellent durability when sealed. Color change accuracy: ±2℃ Size: φ18mm Heat resistance: Approximately 90℃, continuous heating for 1000 hours (20×30mm test piece) Water resistance: Approximately 1 month in room temperature water Breakdown: 24 sheets each of 50, 55, 60, 65, and 70 degrees Celsius, totaling 120 sheets Reversibility Discoloration temperature: 50-70℃ *The color change from high temperature to low temperature due to a drop in temperature is approximately 15°C lower than the displayed temperature due to the hysteresis phenomenon.