The ultimate Humidity Care System combines our two best sellers with our easy-to-use, no-mess, and low-maintenance guitar humidifier The Humitar, and The HumiReader a humidity and temperature monitor that is simple, accurate and reliable. The Humitar safely releases moisture evenly to eliminate potential problems such as warping, shrinking and, worse yet, cracking. The Innovative Humid-i-Bar sponge holds a lot more water than similar products. This means less monitoring on your end while resting assured your fine guitar is cared for. The HumiReaders innovative design allows you to customize where you want to measure. In the acoustic guitar soundhole, right next to the Humitar!? Yes. This unmatched feature allows you to hang both the humidifier and monitor right from acoustic guitar strings and measure where you want to, inside the soundhole. The accurate sensor monitors your string instruments environment every 20 seconds and gives you the humidity and temperature readings on its LCD display. It also gives you the maximum and minimum range over the period you are measuring and can be reset at any time. If you prefer, you can measure inside the case near the headstock or fretboard/fingerboard. The HumiReader comes with a unique case holster that has a strong adhesive backing to stick to your case and hold the HumiReader. Or just place the HumiReader in any room you want to monitor. The HumiReader comes with many other cool features such as a reminder on the humidity and temperature Safe Zone you want to keep your string instrument at, a long-lasting AG 13 battery and Fahrenheit or Celsius readings.