The colony counter Astor 20 of Astori Tecnica is very easy to use.

OPERATION:

The Astor 20 petri dish holder is  backlit and pressure sensitive . It allows precise colon counting with a simple classic felt pen .
A digital counter automatically increments by one unit each time you press.

CHARACTERISTICS :

• Easy-to-read digital readout with automatic counting
• Reset by reset button
• Audible signal to confirm each colony count
• Transparent, backlit, pressure-sensitive petri dish holder
• Gridded disc with LED lighting
• Compatible with all markers
• Petri dishes up to Ø 110 mm.

ADVANTAGES :

– enumeration up to 9999 colonies
– reduced power consumption

The Astor 20 comes with:
– Adapter / reducer for petri dishes Ø 90 mm included.