Counter-Pen is a combination marker and digital counter designed for the laboratory and plant. Each time a black mark is made with the felt-tipped pen, it automatically makes a beeping sound and LCD displays the count.

• Touch, sound and count occur simultaneously
• Audio/visual counts to 99999 with reset button
• On/off switch

Used to count cell growth on Petri dishes, inventory parts and tally samples received. With pen cap. Impossible to make an error, even when interrupted - marks hold your place and counter holds your total.