Viewer for colony counting - Plexiglas rest surface with cm graduation scale - cold-light indirect fluorescent lighting - magnifying glass adjustable for correct positioning - adapters for 60, 90, 100 and 120 mm diameter Petri dishes - complete with switch, electrical cable and plug - weight 2 kg - dim.: 230x230x100 h mm - power supply: 220 V, 50 Hz (counting pen not included).

Pen electronic colony counter - 4-figure digital display, sound alarm for end of count and reset button.