Reverting Temperature Tattle-Tale Strips
I've used tattle-tale strips for 30+ years. They work and are irrefutable proof
Here is one example. Note the word REVERTING in the subject line
http://www.ebay.com/itm/Digi-Sense-Reversible-7-Point-Horizontal-Temperature-Label-Black-Red-30-60C-8-/262824303685?hash=item3d318c9c45:g:YgAAAOSwXYtYwUIB
http://vi.vipr.ebaydesc.com/ws/eBayISAPI.dll?ViewItemDescV4&item=262824303685&t=1489106540000&tid=10&category=26237&seller=coleparmer&excSoj=1&excTrk=1&lsite=0&ittenable=false&domain=ebay.com&descgauge=1&cspheader=1
Here is one example. Note the word REVERTING in the subject line
http://www.ebay.com/itm/Digi-Sense-Reversible-7-Point-Horizontal-Temperature-Label-Black-Red-30-60C-8-/262824303685?hash=item3d318c9c45:g:YgAAAOSwXYtYwUIB
http://vi.vipr.ebaydesc.com/ws/eBayISAPI.dll?ViewItemDescV4&item=262824303685&t=1489106540000&tid=10&category=26237&seller=coleparmer&excSoj=1&excTrk=1&lsite=0&ittenable=false&domain=ebay.com&descgauge=1&cspheader=1
