Gw instek gdm 8246 desktop multimeter 50 000 counts cat i 1000v cat ii 500v gw instek gdm 8246 p this gdm 8246 desktop multimeter cati 1000v catii 500v from gw instek has been manufactured to a high standard and offers a rich set of features such as the 50 000 count meter the meter boasts large dual led displays capable of showing two electrical characteristics at once acv plus frequency or dbm dcv plus dbm or acv ripple p p the gdm 8246 carries an extensive list of measurement item