Portable TR-57-S0346 VU Meter Power Amplifier DB Meter Sound Level Tester
Pointer Length: 30mm/1.2in±1mm/0.04in from the needle end to the axes. Pointer width: 0.45mm/0.02in±0.05 mm/0.002in. Insulation Resistance: Above 50Ω. If you do not receive our reply within 48 hours, pls.