I have both a 5 gallon and 15 gallon electric blanket. There are some differences in warming and warming consistency along site. It warms up quickly and took readings about 15 minutes after plugging in the device. The touch measurement on the outside is approximately 90 degrees +/- 2 degrees. On the inside, which should be touching the bucket, readings ranged from 125 degrees (farthest from the power source) to 145-148 degrees (in the middle and closest to the power source). Simply plug into an outlet to turn on. No thermostat, sold separately. Decent cord length of 5 feet.