The H310s work fine in my freezers, and accurately report the temperature as it swings from -10°F to about 4°F. I really needed these to alert me if the temperature rises too high, like to 20°F. But i

Model : Hardware Version : Firmware Version : ISP : I have three 3-way light circuits, each with just one HS-210 installed (the second switch in each circuit was left original). Two of the circuits wo