Overview The Safestrip label is a unique threshold indicator label we originally designed for one customer who needed to provide a stronger visual indication of temperatures being exceeded. The bottom three cells turn from white to black, the top two change white to red, to show when temperatures exceed safe tolerance limits. Adhesive backed temperature sensitive label that reacts to increasing temperature with a permanent colour change. Accurate & 100% reliable. Resources Safety Data Sheet Product Information Sheet Specification Size: 51mm x 18 mm (2" x 0.7") Scale: °C Range: 49°C to 180°F (82°C) Reaction Time: Max 4 sec. Colour change: one way permanent Accuracy: +/- 1°C Type: Vertical Adhesive backed labels Accuracy & Conformity: Click Here Details If placing the indicators in an environment where they can be exposed to oil or aggressive conditions we recommend the labels are sealed in place on a clean dry surface with one or more layers of clear epoxy. When using these indicators, ensure they are kept only in refrigeration temperatures and NOT deep freeze situations. The labels must be applied to a dry, clean surface to ensure proper adhesion. Need a bigger quantity of 1000+ labels or your own logo on the labels - We've made a wide range of bespoke designs for for customers who need something different. Email us with some details of your requirement and we'll quote you a price within 48 hours.