The TAOMSUN 721 Visible Spectrophotometer uses microprocessor control technology to perform qualitative and quantitative analysis of substances in the visible spectrum (approximately 360 nm – 1000 nm), making it an essential multi-purpose analytical instrument for routine laboratories. The core optical system features a holographic blazed grating monochromator, delivering excellent wavelength accuracy, high monochromaticity and low stray light. Equipped with a backlit LCD display that eliminates the parallax and reading errors of pointer-type instruments, together with a microprocessor-based measurement system for high-precision T-A conversion, automatic zero/100% (T) adjustment and direct concentration readout. Built-in automatic light-shutter technology protects the photodetector without requiring black-body capping; paired with a high-performance tungsten halogen lamp, it ensures long-term stable operation. The instrument offers high reading accuracy, excellent reproducibility and good stability. It comes standard with a 5 cm cuvette holder, with a 10 cm cuvette holder and spectral analysis software available as options. It is widely used in physical and chemical testing, pharmaceutical testing, food testing, water quality analysis, environmental monitoring, and university teaching and research.

🔍 Key features: Holographic blazed grating monochromator + microprocessor measurement system – ensures wavelength accuracy and reliable readings; automatic light-shutter technology protects the photodetector without requiring black-body capping; high-performance tungsten halogen lamp guarantees stable illumination. Designed for teaching, research, quality inspection and production QC applications.

Q: What wavelength range does the 721 spectrophotometer cover?
A: The instrument operates in the visible spectrum, with a typical wavelength range of 360 nm – 1000 nm, suitable for most routine colorimetric analyses.

Q: What are the advantages of the backlit LCD over traditional pointer-type displays?
A: The backlit LCD avoids reading errors caused by pointer deflection angles and parallax, providing more intuitive and accurate numerical readings – especially suited to high-throughput testing scenarios.

Q: What does the automatic light shutter technology do?
A: The automatic light shutter closes the optical path when no measurement is in progress, so no black-body cap is needed. It effectively protects the photodetector from prolonged light exposure and aging, extending the instrument's service life.

Q: Does it support direct concentration readout? How does it work?
A: Yes. Using the concentration factor setting, the absorbance value can be converted directly into a concentration value for one-touch readout, greatly improving daily testing efficiency.

Q: Can long pathlength cuvettes be used?
A: Yes. The instrument comes standard with a 5 cm cuvette holder, and a 10 cm cuvette holder is available as an option for low-concentration sample testing.

Q: Does it support data export or printing?
A: An optional serial printer can print measurement data directly, and dedicated spectral analysis software can be added for data management and analysis.

TAOMSUN is a supplier of laboratory analytical instruments integrating R&D and sales. Manufacturing is certified under the ISO 9001 quality management system, and the product range covers spectrophotometers, spectral analysis instruments and supporting consumables. The core optical systems are produced with precision machining and assembly processes, ensuring wavelength accuracy and data reliability in every instrument. Products are widely used in the chemical, pharmaceutical, environmental, food and university research sectors. 🌏 Overseas sales and technical support is provided by METICULAB™ (Korea).