Thermometer Wall Plate (12100)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Medical grade， digital thermometer accurate to +/- 1 degree combined with a plastic wall plate</li><li>Accurate temperature readings in every room throughout the house</li><li>To be used on interior walls without dimmer switches only</li><li>Used with a toggle switch</li><li>Replacement battery Ace No's 3115581，3067325 or 36228</li></ul></div><img src="http://ecx.images-amazon.com/images/I/21NDS8TTZJL.jpg" noproxy>