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Item #:
5840930
Apera Instruments, LLC-AI481 TN400 Portable Turbidity Meter, Infrared Sensor, ISO 7027 Compliant, EPA Approved Standard Solutions for Easy
Item #:
5840930
BND 1334
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Apera Instruments TN420 is designed for water quality professionals, offering long-term reliability in high-accuracy turbidity measurement with an intuitive operating system and simple calibration.
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What Stands Out
Portable Design
The AI481 TN400's compact and lightweight design allows easy transportation, making it ideal for field measurements and on-the-go testing.
High Accuracy
With an accuracy of ±2% plus stray light, this turbidity meter ensures reliable results, crucial for maintaining quality in water analysis.
ISO Compliant
Being ISO 7027 compliant and EPA approved for standard solutions guarantees that users can trust the calibration and results in professional settings.
Product Details
Who Should Buy?
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Environmental Laboratories
Ideal for labs requiring accurate turbidity measurements for environmental monitoring and compliance with EPA standards.
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Field Testing
Perfect for technicians needing a portable solution to measure water quality in remote locations or outdoor settings.
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Water Treatment Facilities
Beneficial for water treatment plants monitoring turbidity levels to ensure safe drinking water and regulatory compliance.
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Home Use
Not suitable for casual users due to its specialized use and calibration requirements that may be too complex.
Product Description
Apera Instruments, LLC-AI481 TN400 Portable Turbidity Meter, Infrared Sensor, ISO 7027 Compliant, EPA Approved Standard Solutions for Easy Calibration, Accuracy: 2%Stray Light
About This Item
Introducing the Apera Instruments TN400 Portable Turbidity Meter, a reliable and accurate tool for measuring turbidity in various water sources. This handheld device is perfect for water quality professionals, providing long-term reliability and high-accuracy measurement. The TN400 is designed with an infrared sensor and uses the 90° scattering method, ensuring compliance with the ISO 7027 standards and the U.S. EPA 180.1 method.
This makes it suitable for determining turbidity in drinking, ground, surface, and saline waters, as well as domestic and industrial wastes. With an intuitive operating system and simple calibration process, using the TN400 is a breeze. It comes with standard solutions for easy calibration, ensuring accuracy within ±2%. You can trust this portable turbidity meter to provide precise measurements every time. One of the key features of the TN400 is its long battery life.
Powered by a 3.7V rechargeable lithium battery, it can operate continuously for up to 20 hours. This makes it ideal for field use, allowing you to conduct turbidity tests without worrying about running out of power. The TN400 comes complete with everything you need in a rugged carrying case. This includes the meter itself, AMCO calibration solutions ranging from 0 to 800 NTU, 6 sample vials, a USB charger, silicone oil, a microfiber wipe, and a user manual.
You'll have everything you need to start measuring turbidity right out of the box. Whether you need to monitor water quality in industrial applications, perform research, or ensure the safety of drinking water, the Apera Instruments TN400 Portable Turbidity Meter is the perfect tool for the job. Its portability, accuracy, and ease of use make it a must-have for any water quality professional. Invest in the TN400 today and experience the convenience of a handheld turbidity meter that delivers reliable and accurate results.
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Customer Questions & Answers
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Question:
What are the key features of the Apera Instruments, LLC-AI481 TN400 Portable Turbidity Meter?
Answer: The Apera Instruments AI481 TN400 Portable Turbidity Meter is equipped with an infrared sensor and complies with ISO 7027 standards, making it highly accurate for measuring water clarity. It features a user-friendly interface for quick readings and includes EPA approved standard solutions for calibration. This turbidity meter is designed for both laboratory and field applications, making it suitable for environmental monitoring, aquaculture, and water treatment facilities. -
Question:
How does the infrared sensor in the Apera TN400 enhance its performance?
Answer: The infrared sensor in the Apera TN400 enhances its performance by providing precise turbidity readings across a wide range of concentrations. It minimizes the influence of color or suspended solids on measurement, ensuring reliable results. This technology is particularly useful for assessing water quality in polluted environments or during project assessments where accuracy is critical. -
Question:
Can the Apera TN400 be used for both freshwater and saltwater applications?
Answer: Yes, the Apera TN400 is versatile enough to be used for both freshwater and saltwater applications. Its design allows for accurate turbidity measurements in various settings, such as aquariums, lakes, rivers, and ocean monitoring. This makes it an essential tool for environmental scientists and aquaculture professionals who need to monitor water quality in diverse aquatic conditions. -
Question:
What calibration solutions are compatible with the Apera TN400?
Answer: The Apera TN400 is compatible with EPA approved standard turbidity solutions, which facilitate accurate calibration. Regular calibration with these certified standards ensures measurement reliability, critical for laboratories and field testing. This enhances the usability of the meter in various sectors, including environmental research, water treatment, and public health assessments. -
Question:
Is the Apera TN400 easy to operate for beginners?
Answer: Yes, the Apera TN400 is designed with user-friendliness in mind, making it suitable for beginners. The intuitive interface guides users through measurement processes, and its compact size allows for easy handling in the field. This ease of use makes it a great choice for students, educators, and anyone new to water quality testing, ensuring accurate data collection without steep learning curves. -
Question:
How does this turbidity meter aid in environmental monitoring?
Answer: The Apera TN400 plays a crucial role in environmental monitoring by enabling quick and accurate turbidity assessments in various water bodies. By measuring turbidity, users can identify pollution sources, track sediment flow, and evaluate the ecological health of aquatic environments. This data is invaluable for regulatory compliance, water resource management, and conservation efforts. -
Question:
What is the optimal temperature range for using the Apera TN400?
Answer: The optimal temperature range for using the Apera TN400 is typically between 0°C to 50°C (32°F to 122°F). Operating within this range ensures accurate readings and consistency in measurement. Understanding the temperature limitations helps users in maintaining device reliability while conducting field tests in varying climatic conditions. -
Question:
Can the Apera Instruments TN400 be used in industrial settings?
Answer: Absolutely, the Apera TN400 is suitable for both industrial and lab settings. Its robust construction and reliable measurement capabilities make it ideal for monitoring turbidity in industries such as wastewater treatment, food processing, and chemical manufacturing. Users can rely on this meter to provide essential data for process optimization and compliance monitoring. -
Question:
What maintenance does the Apera TN400 require?
Answer: Maintenance for the Apera TN400 involves regular cleaning of the sensor and ensuring proper calibration with standard solutions. Users should rinse the sensor thoroughly after each use to prevent contamination and preserve accuracy. Implementing these simple maintenance practices will prolong the life of the device and ensure consistently reliable measurements. -
Question:
Where can I buy Apera Instruments, LLC-AI481 TN400 Portable Turbidity Meter in Brunei?
Answer: You can purchase the Apera Instruments, LLC-AI481 TN400 Portable Turbidity Meter from Ubuy in Brunei. Ubuy offers a convenient shopping experience with a wide variety of products, making it an ideal destination for acquiring this high-quality turbidity meter for your water quality testing needs.
Apera Instruments Turbidity Meters Editorial Review
The Apera Instruments TN400 Portable Turbidity Meter has received a largely positive reception from customers, particularly highlighting its affordability and ease of use. Users transitioning from more expensive brands, such as Hach, appreciate the TN400's functional features packed into a compact and well-designed kit. Many reviews commend the device for its Consistent readings and stable calibration, which are crucial for applications ranging from environmental monitoring to wine production. The inclusion of essential accessories, such as extra batteries, sample jars, and a carrying case, further enhances its usability. The absence of buttons and a sleek, waterproof design is noted as a significant advantage, contributing to the device’s intuitive user experience. Additionally, customers have expressed satisfaction with the meter's robust Construction and reliable performance, with many finding it to be a practical replacement for older, bulkier turbidity meters. However, there are some dissenting opinions regarding the TN400's reliability. One user reported persistent issues with obtaining accurate readings despite multiple returns for testing, expressing regret over their purchase. This suggests that while many experience success with the product, there may be quality control issues that affect a minority of users. Overall, the Apera Instruments TN400 is positioned as a cost-effective, user-friendly turbidity meter that meets the needs of various applications, although potential customers should keep in mind the reported sporadic issues with accuracy. **
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Pros
- Affordable compared to competitors (25% of the price of Hach models).
- Easy to use with intuitive design (no buttons).
- Reliable readings and stable calibration.
- Includes a complete kit with necessary accessories.
- Compact and portable carrying case.
- Positive reviews for customer support and warranty (2 years).
Cons
- Reports of unreliable readings from some users.
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23 July 2026 · via Trustpilot
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
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BND 1334
Order now and get it around Thursday, August 13
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Features & Benefits
- Uses 90° scattering method compliant with U.S EPA 180.1 method
- Designed for water quality professionals
- Offers long-term reliability for high-accuracy turbidity measurement
- Intuitive operating system and simple calibration
- Powered by 3.7V rechargeable lithium battery
- Comes in a rugged carrying case with necessary accessories
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