Violin Thermometer Hygrometer Aluminum Alloy Round Temp Humidity Meter for Guitar Musical Instrument Care Monitoring Tool Gold Features: Adopt aluminum frame, with exquisite workmanship and delicate appearance. Round, compact and portable without taking up much space. The measurement humidity range is 20 ~ 100%. The measurement temperature range is -25 ~ +55℃/ -13 ~ +130℃. Mainly used for humidity and temperature measurement of instruments such as violin and guitar. Specifications: Material: Aluminum alloy Color: Gold Size: 40mm*40mm*10mm/1.57*1.57*0.39" Net weight: 13g Gross weight: 13g Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement. Included: 1 X Violin Thermometer Hygrometer