Product review (1 stars): Don't waste your time on this product.
Have tried three different RHT10 units, none of them will connect to a Windows 7 computer reliably. When it does connect, and I set up the data logger for every ten seconds, and I press the orange button to start it, nothing happens. I try pushing and holding the button, pressing it real quick, etc., waiting for the record light to blink, nothing, same on two different units. I did have one set up once for a 6 month reading, and it worked just fine, so I know how to use it. I put a new battery in it, and the lights blinked as they are supposed to when I put the battery in, tried to set it up again, won't connect to the computer. Have tried the included Version 5.6 software and tried other software. Have tried it on several different computers, too. Don't waste your time with this product.