Will passive VU Meter affect audio quality?

[dickiefunk]

Hi I'm looking to buy a Rane Ms-1b for my setup but the Rane doesn't really have any metering. Because of this I'm thinking of adding a rack VU meter to monitor tracking easier. SM Pro Audio has a VU meter called the VU8 :-

http://www.smproaudio.com/VU8.htm

If I was to use this in my chain for recording would this affect the audio quality in any way? Is there a better way of doing this or a better VU meter?

Thanks

Richard

[bleebsen]

*Any* measuring will change the measured signal. But probably not in a human-noticable way.