Pen colony counter 
SCP18

SCP18 Pen colony counter is a united tool of mark and digital, especially designed for laboratories and factories. Its silver pen cap can be taken off or not as the demand of written mark or not. When press the tip of the pen colony counter against the item to be counted with sufficient pressure for the tactile feedback " click" to be felt along with  sound of beep. " Point-press-click-release" is a complete process of count. It is made by ABS plastic material, along with sound.

Feature
Suitable for colony counter during microbiology test
Pen design, portable for using
Can written with mark or not as demand, having sound and count number displayed in the LCD screen
Digital count avoiding human error
With RESET, pen cap and ON/OFF 
Count range: 0-99999
Power: button cell
Size: 155(L)mmX20mm
Weight: 18g

Useful for colony counter in microbiology test, checking parts in warehouse, receiving samples of factory and so on.