Product review (4 stars): Best Thermometer so far
I purchased this to replace the WS11 model I had to return due to being defective. This one offers similar functions at a cheaper price. It can be customized to a limited degree and works with additional sensors (even ones from this company's other consoles). Accuracy can be calibrated with other more precise thermometers. It comes with both a battery-only function (but no batteries) and AC adapter. One complaint is that the power cord protrudes straight out from the bottom right side of the console and would be better served if it was angled at 90 degrees instead. The assorted color screens can always stay on when AC power is applied and only shows when prompted while on battery power alone to conserve the 4 AA batteries. I believe this function can be changed to be always on when on battery power but it will shorten their life. These screens can be programed to change with variations in temperature range both for Inside and Outside readings. My biggest complaint is the lack of hardware for wall-hanging this device and its sensors, especially the remote sensors which use a very small screw for hanging. I had a hard time finding these screws with accompanying wall anchors at the local hardware store. The lack of appropriate hardware, lack of power adapter cord angle along with what I found to be non-existent customer service for these devices caused it to lose that coveted 5th star.