Apera TN420 Portable White Light Turbidity Meter EPA 180.1 Compliant for High-Accuracy Water Quality Testing

The Apera TN420 Portable White Light Turbidity Meter employs a *90° scattered light measurement method* with a high-quality tungsten filament lamp, fulfilling the stringent requirements of the U.S. EPA 180.1 standard for turbidity determination. Designed for water quality professionals and environmental monitoring, it offers reliable turbidity analysis across diverse aqueous samples, including drinking, ground, surface, and saline waters, as well as industrial and domestic wastewaters.

Key technical features include:

• Tungsten filament lamp light source, replaceable and optimized for low-range turbidity measurements (<10 NTU), essential for precise bioprocessing and molecular diagnostics applications involving water purity controls.
• Utilizes EPA-approved AMCO high-molecular polymer turbidity standard solutions (0, 20, 100, 400, 800 NTU), which are NIST traceable and stable, ensuring standardization critical for synthetic biology workflows and biomanufacturing quality assurance.
• Capable of average measurement mode, automatically obtaining multiple readings and computing the average, improving reproducibility crucial for biomedical engineering and clinical diagnostics environments.
• Features a large TFT color screen with multilingual support (English, Spanish, Chinese) and intuitive operation, facilitating ease of use in biotechnology laboratories and fieldwork.
• Powered by a 3.7V rechargeable lithium battery offering up to 20 hours of continuous operation—five times longer battery life than many competitors—making it ideal for prolonged outdoor environmental monitoring and live-cell imaging water prep.
• Supplied in a rugged carrying case complete with calibration standards, six sample vials, silicone oil, microfiber wipe, and user manual, ensuring portability and readiness for biopharmaceutical production pipelines and water testing on-site.

This turbidity meter is widely used in environmental biotechnology, molecular biology research focusing on water quality, and industrial applications requiring precise turbidity measurements compliant with EPA methods. It supports workflows in gene editing labs, synthetic biology, and molecular diagnostics where reliable water clarity measurement is critical.