Counter-Pen™ is a combination marker and digital counter designed for the lab and plant. Each time a black mark is made with the felt-tipped pen, it automatically sounds a beep, and LCD displays the counts. Use it to count cell growth on petri dishes, inventory parts, and tally samples received. Touch, sound, and count occur simultaneously. Impossible to make an error, even...
Counter-Pen™ is a combination marker and digital counter designed for the lab and plant. Each...
