Mine came with a little indicator that lights up when I pint the Zerostat at it and pull the trigger. That's how you know it is working.
I agree with Rushton, don't use this on your cartridge!
I suppose it may have some effect on cables but I use something much stronger than the Zerostat or Talisman for cables and tubes.
I agree with Rushton, don't use this on your cartridge!
I suppose it may have some effect on cables but I use something much stronger than the Zerostat or Talisman for cables and tubes.