Thermopit 3I@/3IC@ (irreversible, 3 temperature display) Light yellow to black 1 box (20 sheets) 3IC230@ 1 box (20 sheets)

Records when the set temperature has been reached. It utilizes the physical property changes of petroleum-based natural wax that is certified as a food additive, and is highly safe as it does not contain environmentally hazardous substances such as lead, mercury, or chromium. Color development temperature (℃): 230, 240, 250 Color tone: Light yellow to black Type: Chemical Reaction 10 degree intervals Accuracy: ±2℃ (below 170℃), ±3℃ (above 180℃) Base color: Brown (polyimide film used) Passed 10 years of accelerated outdoor exposure testing by manufacturer Quantity: 1 box (20 sheets) *Storage method: Store in a cool, dark place at approximately -20°C below the color-changing temperature.