VWR® Counter-Pen™ Colony Counter

Made of durable ABS plastic, this combination marker and digital counter is designed for the lab and plant.

Use the unit to count cell growth on Petri dishes, inventory parts, and tally samples received. Each time a black mark is made with the felt-tipped pen, the unit automatically sounds a beep, and the LCD displays the count. Touch, sound, and count occur simultaneously. Even when interrupted, marks hold your place and the counter holds your total, making the unit virtually error-proof. Unit features audio/visual counts to 99,999 with reset button, on/off switch, and pen cap.