Check the listing for details. VU Meter DB Level Header Audio Power Amplifier Indicator Meter DB Table Blue. Color: Blue, Condition: New. Listed at 22.27 USD. VU Meter DB Level Header Audio Power Amplifier Indicator Meter DB Table Blue Description: Pointers Material: Zinc and copper-nickel alloy Pointer color: black The direction of the pointer swing : left to right Pointer length : 44± 1 mm from the center axis to the needle end Pointer width : 0.45 ± 0.05 mm Instructions: using the temperature limits :-10 ℃ to +60 ℃ RH 35 to 85% Storage temperature limits :-20 ℃ to +60 ℃ RH 35 to 85% -----Do not use the meter in direct sunlight, and put the meter in the box to avoid foreign matter into the meter internal. Soldering Condition terminal about 3 mm placed in the temperature of 230 ℃ tin plate, placed 3.5 seconds. After this test, 7-14 to maintain normal, Hand-held soldering gun to solder temperature 350 ℃, the terminal contact for 3.5 seconds, the terminal front-end of about 3mm contact with the solder gun. After this test, 7-14 to maintain normal, anti-static test in the same direction three times, to characterize the difference between the pointer in the length of the scale in a transparent cover surface to dry nylon 1/3 back to the zero position. Bulbs: 2 white LED backlighting, parallel to the PCB (2.8 - 3.0V ) Package 1pcs VU Panel Meter