This unit is cool. Hardly any of these were ever made despite the fact that they really do work. It’s called Cigar Sentry. The company that produced it was called Nuventions, Inc. The model number is: ECHATX. The FCC ID is: PETCSRXTX. The patent was issued June 7, 1999. The patent number is: 6157306. The patent expired December 5, 2000. As a result of this the company obviously didn’t make hardly any of these. I can tell you with certainty it had nothing to do with the product. Most likely a financial investment issue. This Cigar Sentry system was specifically designed for cigars. It has a predetermined moisture/humidity range. If it falls out of the range the sensor inside the container transmits an alarm signal to the outlet where Cigar Sentry is plugged in. The system within the container where the cigars are operates on 2 AA batteries. The operation of the sensor is intermittent to extend the service period of the power source within the container. The sensor is dimensioned to be conformably received in a cigar box for use in connection with the external alarm signaling device. One of the things I don’t know exactly is how far the signal will travel. I plugged it in several outlets. The furthest being about 20 feet.