Thermo Scientific™ Sensititre™ Nephelometer

Accurate, Cost-Effective Standardization of Bacterial Inoculum Density

The Thermo Scientific™ Sensititre™ Nephelometer is a compact, user-friendly instrument designed to standardize bacterial suspension density quickly and reliably for Minimum Inhibitory Concentration (MIC) testing. It offers a simple, cost-effective method to prepare inoculum that meets the 0.5 McFarland turbidity standard, ensuring consistent inoculation of antimicrobial susceptibility test plates.

The nephelometer uses a color-coded LED indicator to guide the user to the correct turbidity range, minimizing subjectivity and human error compared to manual turbidity matching. It plays a vital role in achieving standardized and reproducible AST results, improving lab efficiency and supporting reliable MIC interpretation across clinical and research applications.

Key Features & Benefits

• Precise Inoculum Standardization
  Designed to prepare suspensions equivalent to the 0.5 McFarland standard, supporting consistent inoculation volumes and AST reproducibility.
• Simple LED-Guided Interface
  A clear green “in range” light confirms when the bacterial suspension is within the target turbidity range, reducing reliance on visual approximation.
• Minimized Manual Error
  Helps avoid common errors associated with matching numeric McFarland values manually, improving consistency across lab personnel and workflows.
• Compact and Lightweight
  Small benchtop footprint and low weight make it ideal for space-constrained laboratories and mobile lab environments.
• Cost-Effective Solution
  Offers standardization without the need for complex or expensive optical systems.

Applications

• Antimicrobial Susceptibility Testing (AST): Ensures standardized bacterial inoculum density for MIC testing using broth microdilution plates.
• Clinical Microbiology: Enhances reproducibility in diagnostic testing workflows.
• Pharmaceutical R&D: Supports compound screening and reproducible assay conditions.
• Veterinary and Public Health Labs: Used for standardized testing of zoonotic and environmental pathogens.

Specifications Table

The Thermo Scientific™ Sensititre™ Nephelometer offers laboratories a fast, reliable, and easy-to-use method to standardize bacterial inocula in MIC-based susceptibility testing workflows. Its precise LED-guided system reduces human variability, while its compact design and low power requirements make it ideal for labs of all sizes focused on quality-controlled antimicrobial testing.