Music Nomad MN305 HumiReader Hygrometer， Humidity， and Temperature Monitor<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Accurate sensor measures humidity and temperature every 20 seconds </span></li><li><span class="a-list-item"> Innovative 3-in-1 design for sound hole， case， or room </span></li><li><span class="a-list-item"> Hang from strings to monitor sound hole or use Case Holster to securely use in instrument case </span></li><li><span class="a-list-item"> Reads Fahrenheit or Celsius and displays maximum and minimum levels </span></li><li><span class="a-list-item"> Hygrometer comes with a long-lasting AG13 battery </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51EeHHEvW%2BL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/3139IOojTgL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41h6Vw48pyL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/412Obk1Lt0L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41EEiuJivuL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51S7VGQJdZL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61az7NUOCKS.png" noproxy>