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E-mail
taomsun@vip.163.com
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Phone
13862625813
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Address
Building A, Renheng PARK, 1211 Xinghu Street, Suzhou Industrial Park
SUZHOU TAOMSUN SCIENTIFIC INSTRUMENTS CO.,LTD
taomsun@vip.163.com
13862625813
Building A, Renheng PARK, 1211 Xinghu Street, Suzhou Industrial Park
Brand:TAOMSUN |Overseas Tech Support:METICULAB (Korea) |Model:L7 · Double Beam · Czerny-Turner · Silicon Photocell

TAOMSUN L7 double beam UV-VIS spectrophotometeris designed for quantitative analysis, kinetics measurement and low-concentration sample detection in water testing, pharmaceutical analysis, material testing and research laboratories. Equipped with a Czerny-Turner monochromator, 1200 lines/mm blazed holographic grating and silicon photocell detector, it delivers stable photometric performance across the full 190-1100 nm wavelength range. The 8-inch touch screen provides intuitive operation, and optional UV WIN8 software enables full-spectrum scanning, data processing and reporting on PC.
🔍 Key Features:double beam optical system; wavelength range 190-1100 nm; spectral bandwidth 1.8 nm; wavelength accuracy ±0.5 nm; stray light ≤0.03%T; 8-inch touch screen; USB COM port; full-spectrum scanning, kinetics, GOTO wavelength, linear regression, concentration direct reading, peak/valley detection; optional UV WIN8 software.
| Model | L7 |
| Type | Double beam UV-VIS spectrophotometer |
| Optical System | Czerny-Turner monochromator, focal length 160 mm |
| Grating | 1200 lines/mm blazed holographic grating |
| Detector | Silicon photocell |
| Wavelength Range | 190-1100 nm |
| Spectral Bandwidth | 1.8 nm |
| Wavelength Accuracy | ±0.5 nm |
| Wavelength Repeatability | ≤0.2 nm |
| Stray Light | ≤0.03%T (220 nm NaI, 360 nm NaNO ₂) |
| Photometric Accuracy | ±0.3%T |
| Photometric Repeatability | ≤0.15%T |
| Baseline Flatness | ≤0.002A over 200-1090 nm |
| Noise | ≤0.15%T (at 100%T) |
| Drift | ≤0.0009 Abs/30 min (after 2 h warm-up) |
| Display | 8-inch color touch screen |
| Interface | USB COM port for PC connection |
| Power Supply | AC 220V ± 10%, 50 Hz |
*Typical values; final specifications subject to factory verification.


• Main unit
• Glass cuvettes 1 cm (4 pcs)
• Quartz cuvettes 1 cm (2 pcs)
• Power cable, fuses
• User manual

1) Quick response within 24 hours on working days.
2) Selection guidance and application support for analytical laboratories.
3) Optional accessories: UV WIN8 software, thermal plotter, long-path cuvette holders.
4) Remote video installation and debugging support provided.
5) Manufactured by ISO 9001:2015 / ISO 14001-certified partner factories; parameters verified before shipment.
Q: What is the difference between single beam and double beam?
A: Double beam design splits the light into reference and sample paths, compensating for light source fluctuations and detector drift. It offers more stable baseline and better repeatability for long-running measurements.
Q: What cuvettes are included?
A: Standard package includes 4 pcs glass cuvettes (1 cm) and 2 pcs quartz cuvettes (1 cm). More cuvettes of various path lengths are available on request.
Q: Does it come with software?
A: The instrument runs on its 8-inch touch screen without PC. Optional UV WIN8 software is available for full-spectrum scanning, data processing and report generation on Windows PC.
Q: What is the minimum order quantity?
A: One unit.
Q: What is the lead time?
A: Approximately 30 days (factory lead time, excluding international shipping time). Exact time is confirmed at quotation according to configuration.
Q: What are your payment terms?
A: Payment is 100% T/T in advance.
Q: Do you provide installation support?
A: Yes. Remote video installation and debugging are provided. Engineers guide you online from unboxing to ignition testing.
Q: What is the warranty?
A: One year warranty. Lifetime technical support.

Suzhou TAOMSUN Scientific Instruments Co., Ltd. (TAOMSUN)was founded in 2012, led by a management team with master's degrees from Nagoya University, Japan, and over 20 years of industry experience. We specialize in analytical instruments, precision optical components, and laboratory consumables. Supported by a stable high-quality supply chain and ISO 9001:2015 / ISO 14001-certified partner factories, we provide selection guidance, drawing-based customization, and one-stop procurement services for research institutions and industrial enterprises.🌏 Overseas sales and technical support provided by METICULAB™ (Korea).

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TAOMSUN
UV-VIS Spectrophotometer
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📧 Sales Inquiry
taomsun@vip.163.com
+86-13862625813
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🌏 Overseas Sales / Tech Support
METICULAB™ (Korea)
choikyuc@gmail.com
+82-10-3988-4813
💬WhatsApp/ KakaoTalk
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TAOMSUN L7 spectrophotometers are manufactured to specification by partner factories. Specifications are typical values and may vary with configuration.
For OEM/ODM customization or special requirements, please contact our sales team. Overseas customers may contact METICULAB (Korea) for Korean/English technical consultation.