Oregon Scientific Wireless Temperature and Humidity Sensor<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Measures temperature and humidity</li><li>3 channel temperature sensor</li><li>Requires 1 AA battery (included)</li><li>Additional or replacement sensor</li><li>Dimensions: 3L x 1.75W x 5.5H in.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31QHAOZcf4L.jpg" noproxy>