1、Providing accuracy and sensitive detection for indoor humidity and temperature. 2、With small probe, just put it into guitar body to sense, easy to use. 3、Convenient for warning you to do maintenance for your favorite instruments. 4、Widely applied to guitar, ukulele, violin, cello, viola instruments. 5、The LCD screen allows a clear and intuitive reading for the data. 1.5m long cable is easy for you use anywhere. Features: Providing accuracy and sensitive detection for indoor humidity and temperature. With small probe, just put it into guitar body to sense, easy to use. Convenient for warning you to do maintenance for your favorite instruments. Widely applied to guitar, ukulele, violin, cello, viola instruments. The LCD screen allows a clear and intuitive reading for the data. 1.5m long cable is easy for you use anywhere. Specification: Condition: 100% Brand New Material: Plastic Battery: 2 * AG13 Batteries(Included) Humidity Accuracy: ± 5% Humidity Measuring Range: 10% - 99% Temperature Accuracy: ± 1° Temperature Measuring Range: -50 - 70° Application: Guitar, Ukulele, Violin, Cello, Viola Cable Length: Approx. 150cm / 59.05in Dimensions(L * W * H): Approx. 4.8 * 2.8 * 1.5cm / 1.89 * 1.10 * 0.59in Weight: Approx. 42g Packing List: 1 x Temperature Humidity Meter