How to use clicker counter to quantify cells

GOGO Hand Tally Counter, Handheld 4 Digit Lap Counter, Manual Mechanical Clicker for Row, People & Knitting

Tally Counter Tally Counter, Hand Held Counter, 4 Digit Manual Mechanical Click Counter, Box of 5

Hand Tally Counter Clicker Tally Counter 4-Digit Palm Click Counter Manual Mechanical Handheld Clicker Counter with Finger Ring for School Golf Knitting Row Crochet

Digi 1st TC-04 Hand Tally Counter

Metal Tally Clicker - Sanguine Sports

Vintage Manual Hand Clicker Tally Click Counter 2 Dia. 3 Digit

1980s Axe Clix Clicker Promotional Item Counter Few Scratches Rare Works Perfect

United Scientific Hand Tally Counter Hand Tally Counter; Grid Type: Simple:Counting

Synced WiFi People Counters by TallyFi

Hand-Held Mechanical Clicker Tally Counter, for Keeping Track of Inventory, Attendance, Traffic