E. coli organism

Sample Transport
Culture ☆ Chromogenic Result

InTray® COLOREX™ Screen Biomed InTray Colorex Screen culture media for diagnostics

InTray® COLOREX™ Screen

Streamline your workflow with simultaneous growth, observation, and chromogenic differentiation. Now you can see selected pathogenic species frequently found in the urinary tract, including gram+ and gram— bacteria. InTray COLOREX Screen makes preliminary detection easy by producing distinctive color and morphology differences between selected pathogenic species within as little as 24 hours – all while inhibiting the growth of yeasts, mold and fungi. E. coli and Enterococcus are positively identified on the initial plate, greatly reducing the need for confirmatory testing.

COLOREX Screen can also be used to differentiate various microorganisms in other infected areas; e.g. scars, wounds, etc. In addition, COLOREX Screen is useful when supplemented with various antibiotics in detecting increasingly important nosocomial and multidrug resistant microorganisms. 

For more information regarding antibiotic supplementals, please see COLOREX ESBL and COLOREX KPC.


Product Principal
  • Combine collection, culture, result and microscopic observation in one IVD device.  
  • Highly selective prepared media in a device designed for in-vitro specimen transport and incubation.
  • Rapid presumptive-positive diagnosis without re-plating.  Intray can be placed directly on microscope stage
  • Fully enclosed cassette with Tyvek® air filtration prevents contamination and exposure, post-collection.   
Simple Convenience
  • InTray is designed for specimen collection/ inoculation at point-of-care
  • Saves time, material cost and waste, reducing exposure to collected sample
  • Place directly on the microscope tray for observation through the cassette’s clear anti-fog window
  • Visual chromogenic differentiation
Accurate Detection

Sensitivity of 99.3% for E. coli

Test Strain


Colony Appearance

E. coli 25922 Dark pink to reddish
K. pneumoniae 13883 Metallic Blue
P. mirabilis 43071 Brown Halo
S aureus 25923 Golden opaque
S. saprophyticus 15305 Pink opaque
E. faecium 6509 Turquoise blue
Time to Result

24 - 72 hours, incubate at 37°C

  • Extended 12 month shelf life (2-8°C) from the date of manufacture
  • Urine
  • Pus
  • Stool
  • Blood
  • Scar
  • Tissue

Features and Benefits

Shelf-life and durability

  • Manufactured for extended 12-month shelf life. 
  • Durable and stackable for incubation
  • No re-plate or wet mount 
  • Once inoculated, no other culture preparation is required... saving time and money. 
  • Designed for specimen collection/inoculation at point-of-care, InTray is a fully enclosed system for transport, incubation, result and microscopic observation. 
  • The sealed prepared media device is selectively formulated for accurate detection and identification of pathogens and non-pathogens
  • Visual chromogenic differentiation and/or selective production of distinctive colony growth with typical identifiable morphology 

Key Features

  • Fully enclosed cassette with air filtration system
  • Nutritive culture colony growth medium, formulated for selectivity and specificity 
  • Anaerobic or aerobic system available (on select products)

You'll immediately experience a reduction in:

  • Time-to-result
  • Cost of laboratory materials 
  • Medical waste
  • Risk of exposure or contamination

Articles and Whitepapers


Product Qty Item #
InTray COLOREX Screen 20 pack 11-103-002

Ordering Information