Sound Frequency Tester Products Category : Physics, Energy > Physical Instruments, Experiment INQUIRY Details AVpower supply on 220V or 110V, four digital display, the range of measuring low frequency: 10HZ-9999HZ, high frequency: 10K-99.99KHZ, with iron shell on 155*130*65mm. Send Inquiry Name:* E-mail:* Tel: Content:* Verification Code:* (All * must be filled in) [ Previous: ] [ Next: ] Related Products Receiving and Transmitting Electromagnetic Waves Large-Screen Oscilloscope Sympathetic Chord Friction Current and Magnetic Field Resistance Box Laser Distance The Current and The Magnetic Field