I. Product Introduction

II. Performance Indicators

1. Imaging Unit

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

• 360° ring four-color LED visible light, shadow-free soft lighting

• 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 status of upper and lower light sources freely adjustable

• 16-megapixel ultra-clear color camera

• Minimum detectable colony: 0.1 mm

• Error rate: ≤ ±10%

• Suitable petri dish diameter: standard 90–110 mm (smaller dishes centered in the aperture)

2. Software Functions

1) One‑click Statistics

• 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

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

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

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

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

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

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

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

2) System Display

• 15.6‑inch large touch screen, resolution 1920×1080, supports external mouse

• Windows 10 64‑bit, 256G storage, no external computer required

3) Auxiliary Statistical Tools

• Correction: threshold adjustment for refinement after one‑click counting

• Selection tools: circle, rectangle, brush

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

4) Data Security & Management

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

• Results exportable in PDF format; raw data unalterable

• Built‑in Chinese/English bilingual interface, one‑key switch

5) Light Source Management

• Independent control: upper and lower lights switched on/off separately via knobs

• Brightness adjustment: free adjustment for each light to meet different contrast requirements

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

6) Automatic Calibration