Aaronia Art.-No.: 177 Option 020: Internal 15dB low-noise preamplifier

This option provides an internal, super low-noise 15dB preamplifier, enabling maximum performance particularly when measuring extremely weak signals.

It is switched via a TRUE RF switch.

There really is no excuse for not ordering this one, considering its very attractive price.

(The maximum sensitivity of the V4 series without option 020 is lower by 15dB).