I. Product Introduction

II. Performance Indicators

1. Imaging Unit

• Fully enclosed dark box to eliminate interference from ambient stray light

• Three-color LED visible light

• Built-in 254 nm UV lamp for cavity sterilization, disinfection and mutagenesis

• Built-in 366 nm UV lamp to excite colony fluorescence, suitable for Escherichia coli counting, green fluorescent protein observation, etc.

• ★ Brightness and on/off control of upper and lower light sources freely adjustable via software

• ★ Light intensity freely adjustable; lighting schemes can be saved and recalled

• 20-megapixel ultra-clear color camera

• 12-megapixel 12 mm high-definition lens

• ★ Minimum detectable colony: 0.04 mm

• ★ Counting accuracy: ≥ 98%

• ★ Counting speed: 1200 CFU/S

• Petri dish types: pour plate, spread plate, membrane filtration, 3M PetriFilm

• Suitable dish diameter: standard 90–100 mm (smaller dishes centered in aperture)

2. Software Functions

1) One‑click counting with 10 classification modes

• Discrete colonies: rapid counting of well-defined, scattered colonies

• Confluent colonies: rapid counting of merged colonies with single background

• Micro-colonies: rapid counting of colonies 0.1–0.5 mm in diameter

• Large colonies: rapid counting of colonies > 2 mm in diameter

• 3M (PetriFilm™): rapid counting on 3M films

• Black grid (Compact Dry™): rapid counting on black grid films

• Grid filter membrane (RIDA™): rapid counting on filter membrane films

• Low‑contrast colonies: counting colonies with color similar to medium

• Single‑color colonies: count one selected color from single/multi‑color samples

• Multi‑color colonies: auto‑extract color by clicking target colonies; segment and count same‑color colonies in selected region

2) Auxiliary Statistical Tools

• Manual correction: add/delete missed colonies by double‑click or drag‑select

• Intelligent correction: AI‑assisted correction after one‑click counting

• Measurement tools: angle, distance, area, curve

• Impurity removal: filter contaminants by color, diameter, roundness

• Single colony analysis: roundness, diameter, perimeter, area of individual colonies

• Overall colony statistics: summary of all colony morphology on the plate

• Colony size classification: 25‑level classification display by size

• Total colony conversion: auto‑calculation based on dish diameter and dilution factor

3. Data Security & Management

• Multi‑user login system with independent, long‑term stored data per account

• Results exportable in PDF format; raw data unalterable

• Audit trail function: full operation log for data traceability

4. Light Source Management

• Independent control: upper and lower lights can be switched on/off separately

• ★ Brightness adjustment: fine adjustment (1% step) via software for different contrast requirements

• Mode switching: upper only, lower only, dual light, etc.

• ★ Scheme save/recall: save custom light settings for consistent reuse

5. Calibration Function