I spoke to another local engineer locally to me today who was running a test on this product himself for a warehouse facility. he told me his hasn't had any issues yet. and they use a monitoring system for food and air temperatures, he said it was another bit of BS when it was left on his bench in the workshop with a note from his supervisor to run on a plant at a local warehouse & processing plant.
He told me anything which comes in a little black box full of a gooie wax is stupid. So I then said and how is the test, and he said frustrating. I said why, and replied, the bloody thing works. I laughed and he said someone eventually was going to make something out of what we have all done for years with a jar of glycol. smart gits he said. 40 years climbing over equipment, and someone makes a box patents it, and sells it.