An optional hydrometer window is visible by the single jumper clamp . ( The black negative jumper clamp is not shown .)
3.
"When other Russian artists ask me why they don't have more success, I say : ` Enough of this black negative energy.
4.
It also helps that on this model, the backlight simply illuminates the background, as it should, a welcome change from the annoying white-on-black negative image you get from the backlight of standard Palms.