The Oregon Scientific Personal Weather Forecaster # EB313HG is a portable weather station that displays temperature measurements in both Celsius and Fahrenheit. It is powered by batteries and features a timer and weather forecast capabilities. The compact design makes it easy to carry around, and the gray color and plastic material make it durable and sleek for indoor use. This model, EB313HG, utilizes electric measuring technology to provide accurate weather information for personal use.
This company or someone should make more of these, its very accurate, compared to expensive units and doesn't require an external sensor, I use one for just inside temperature of my wood stove and the second one on my bicycles, to get an onboard weather station, for riding conditions!