questions & answers Please click on the questions below to view the answers. How does it work? Where can I use the smartsign? How many heat cycles can it withstand? At what temperature does the smartsign display 'HOT'? How long will the smartsign last? How do I clean the sign? Are the graphics to a certain standard? Why should I not use the smartsign in areas of high UV? What temperature range does the smartsign work in? Does the smartsign include instructions?		At what temperature does the smartsign display 'HOT'? When the surface that it is adhered to reaches 50°C / 122°F the smartsign will display the word 'HOT'. It is accurate to +/- 2°.

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