G Series Spectrophotometers – 752G UV-VIS / 722G / 721G / 721G-100 Visible, Economic Models for Education & QC

The G series economic spectrophotometers are designed for general quantitative analysis and educational experiments, offering reliable performance at an affordable price. With high-quality silicon photodiode detectors and 1200 lines/mm diffraction gratings, these instruments ensure accurate and precise measurements. Ideal for colleges, universities, and enterprise labs.

🔧 Key Features

• High-quality optics – 1200 lines/mm diffraction grating and silicon photodiode detector for accurate measurement
• Easy operation – Automatic zero and 100% T adjustment, one-key switching between transmittance, absorbance, and concentration modes
• Direct concentration read-out – Concentration factor setting function for convenience
• Large sample compartment – Accommodates 5–100 mm path length cuvettes with optional holders
• RS232 port – Optional software and dedicated printer available for data management
• User-replaceable lamps – Easy to change halogen lamp or deuterium lamp (752G only)

📋 Model Comparison

752G UV-VIS Spectrophotometer

• Wavelength Range: 200–1000 nm
• Spectrum Bandwidth: 4 nm
• Stray Light: ≤0.3%T (at 220nm NaI, 360nm NaNO₂)
• Photometric Range: 0–100.0%T, 0–1.999A, 0–1999C
• Power: 130W
• Weight: 16 kg

722G Visible Spectrophotometer

• Wavelength Range: 325–1000 nm
• Spectrum Bandwidth: 5 nm
• Stray Light: ≤0.5%T (at 360nm NaNO₂)
• Photometric Range: 0–100.0%T, 0–1.999A, 0–1999C
• Power: 50W
• Weight: 14 kg

721G Visible Spectrophotometer

• Wavelength Range: 340–1000 nm
• Spectrum Bandwidth: 5 nm
• Stray Light: ≤0.5%T (at 360nm NaNO₂)
• Photometric Range: 0–100.0%T, 0–1.999A, 0–1999C
• Power: 50W
• Weight: 14 kg

721G-100 Visible Spectrophotometer

• Wavelength Range: 340–1000 nm
• Spectrum Bandwidth: 5 nm
• Stray Light: ≤0.5%T (at 360nm NaNO₂)
• Photometric Range: 0–100.0%T, 0–1.999A, 0–1999C
• Special Feature: 100mm cuvette holder for specialized applications
• Power: 50W
• Weight: 14 kg

📦 Standard Accessories

• User manual (1 pc)
• Glass cuvette 1cm (4 pcs) – for 721G/721G-100/722G only
• Quartz cuvette 1cm (2 pcs)
• Power cable (1 pc)
• Fuse (2 pcs)

🔧 Optional Accessories

• Thermal printer
• 50mm cuvette holder
• 100mm cuvette holder (for 721G-100 only)
• UV WIN7 software

🔬 Typical Applications

• General quantitative analysis
• Educational experiments in colleges and universities
• Quality control in enterprise labs
• Absorbance-based measurements

✅ Certifications

• CE certified (selected models)
• OEM/ODM available

❓ Frequently Asked Questions

Q: What is the minimum order quantity (MOQ) for G series spectrophotometers?
A: 1 unit is available for testing and evaluation. Volume discounts are available for multiple units.

Q: What is the typical delivery time?
A: Instruments ship within 2-6 weeks from our logistics center in Asia via DHL/FedEx/UPS. Delivery to most countries takes 2-4 business days after dispatch.

Q: What is the difference between the 752G, 722G, and 721G models?
A: The 752G is a UV-VIS model covering 200–1000nm with 4nm bandwidth. The 722G and 721G are visible-only models (325–1000nm and 340–1000nm respectively) with 5nm bandwidth, offering cost-effective solutions for visible light applications.

Q: What is special about the 721G-100?
A: The 721G-100 is identical to the 721G but includes a 100mm cuvette holder, providing higher sensitivity for low-concentration samples and specialized applications.

Q: Do you provide installation and training?
A: Yes, we provide remote installation support and can arrange on-site training for qualified partners.

Q: What is the warranty period?
A: All G series spectrophotometers come with a 12-month warranty against manufacturing defects.

Q: Can I connect the instrument to a PC?
A: Yes, all models feature an RS232 interface. Optional UV WIN7 software provides advanced data processing capabilities.