Mini Sonometer is a tool that is used to demonstrate the relationship between the tension, length, and mass per unit length of the string and the frequency of sound that is produced when it is plucked. The sound is generated in the transverse standing wave in the string. Our offering lets you figure out the relationship between the length of a given wire under constant tension and the vibrating frequency. Mini sonometer is designed for examining how the tension, length, and thickness of vibrating strings affect their pitch. It consists of a hollow resonance box with three adjustable strings and two of which can be adjusted using wrest pins.