Remote temperature monitoring

[goodgollymissmolly]

Once again, depends on the definition of cheap. I have the cheapest Sensaphone. About $400. Since it requires a dial tone to call you, you must have a wired phone attached. I was able to get around that by getting a $100 device called an XLink. It supplies the Sensaphone with a dial tone and links via Bluetooth to a cell phone. So a added a $9.95 per month free cell phone to my cell plan.

It calls both me and my wife up to 100 times until we acknowledge an alarm exceeding preset limits that we select. It ignores answers by your voice mail because you have punch in a code to prove you got the message in order to shut down the calls. I can also call the system myself at any time and get the temperatures at 4 points in the greenhouse.

It has worked perfectly for 3 years now. Total investment about $500 and $9.95 a month for the cell phone.