The aCOLade is a manual colony counter with automatic result recording. The product consists of a compact white light box with a pressure controlled back plate and a pen attached to an integrated digital counter. As soon as microbiologists touch the Petri dish's lid with the pen to count a colony, a beeping sound occurs and the count is automatically added and displayed on the digital counter. The unit can be connected to any computer and comes with software which allows scientists to automatically transfer their counts to a spreadsheet. The system has an adjustable plate ring used to hold plates as small as 50mm in diameter and can be altered to accommodate 90mm and 120mm diameter plates.