Extech TB400 Portable Turbidity Meter
Reliable water testing is simple with the Extech TB400 Portable Turbidity Meter. It delivers quick turbidity readings directly at the source, which helps avoid delays from lab testing. As a result, users can make faster decisions in the field.
Designed for ease of use, the Extech TB400 needs only a small 10 ml sample. This makes routine checks faster and more efficient. In addition, the compact body and battery power allow use in remote locations without difficulty.
Field Performance and Use
Built for practical work, the Extech TB400 provides stable readings with its 850 nm LED light source. It also responds in less than 10 seconds, so users can move quickly between tests. This ensures smooth workflow in busy environments.
Furthermore, the splash resistant front panel adds protection during outdoor use. The auto power off function helps save battery life, while data hold and recall features support easy record keeping.
Accuracy and Measurement Control
Accurate results are supported by a high resolution of 0.01 NTU. The Extech TB400 also offers a wide measurement range up to 1000 NTU, making it suitable for many water types. This flexibility allows use across different industries.
Two point calibration helps maintain reliable performance over time. At the same time, the built in microprocessor ensures repeatable readings with minimal sample variation.
Key Features
- Measures turbidity across a wide range of samples
- Provides fast readings for efficient testing work
- Uses small sample volume for quick analysis
- Supports simple calibration for consistent use
- Designed for portable use in field conditions
- Includes data hold for easy result recording
- Offers memory recall for stored measurements
- Helps reduce need for laboratory testing delays
- Compact size allows easy transport and storage
Technical Specifications
| Manufacturer | Extech Instruments |
| Product name | Extech TB400 Portable Turbidity Meter |
| Manufacturer part code | TB400 |
| Measurement range | 0.00 to 50.00 NTU and 50 to 1000 NTU |
| Resolution | 0.01 NTU |
| Accuracy | ±5% or ±0.5 NTU whichever is greater |
| Light source | LED with 850 nm wavelength |
| Response time | Less than 10 seconds |
| Standard compliance | Designed to meet ISO 7027 |
| Sample volume | 10 ml |
| Calibration | Two point calibration |
| Display | Digital with hold and min max recall |
| Power supply | 6 x AAA batteries |
| Dimensions | 155 x 76 x 62 mm |
| Weight | 320 g |
| Front panel | Splash proof design |
Comparison Table
| Feature | Low Range Mode | High Range Mode |
| Measurement range | 0.00 to 50.00 NTU | 50 to 1000 NTU |
| Resolution | 0.01 NTU | 1 NTU typical |
| Application | Clear water testing | Higher turbidity samples |
| Use case | Drinking water checks | Industrial or waste water |
Document Downloads
What’s Included
- Extech TB400 Portable Turbidity Meter
- 0 NTU standard solution test bottle
- 100 NTU standard solution test bottle
- Cleaning solution with distilled water
- Two test bottles with covers
- Cleaning cloth
- Six AAA batteries
- Hard carrying case