Cole-Parmer Digital Counter Pen 20610-30 auspowers_batchthree 89 charge when used from

89 charge when used from a payphone

Input supply voltage: DC 10V-55V

doesn't block the ear canal

Do Not Bleach

Cole-Parmer Digital Counter Pen 20610-30 auspowers_batchthree 89 charge when used fromCole Parmer Digital Counter Pen 20610 30 Counter pen is a combination marker and digital counter designed for the lab and plant. Use it to count cell growth on petri dishes, inventory parts, and tally samples received. Counter beeps each time a mark is made ensuring an accurate tally. Lcd simultaneously displays total and can be reset at the touch of a button. Durable ABS plastic pen features on off switch and comes with cap. Unit measures 6''l x 2