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IoT Intelligent Visible Spectrophotometer

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Model NO. L3/L4

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The professional high-precision spectrophotometer ensures stable 0.002A readings for accurate lab analysis.

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Features：

7-inch color touch LCD (1024*768) with user-friendly interface.
Cloud storage supported; accessible via WeChat scan.
Holographic blazed grating C-T monochromator & 24-bit AD chip, ensuring low stray light (<0.1T%), high precision and stability (0.002A).
Large storage capacity: 2000 data points and 96 working curves.
Standard USB, WiFi & Bluetooth; supports wireless printing, USB export (Excel-editable) and optional software.
Fast scanning (up to 3000nm/min), auto wavelength & lamp switching; advanced functions via PC software.

Advantages:

The professional high-precision spectrophotometer ensures stable 0.002A readings for accurate lab analysis.

Specification：

Model	L3	L4
Display	7-inch touch screen, 1024*768 resolution	7-inch touch LCD, 1024×768 resolution
Monochromator	Holographic blazed grating C-T monochromator	Holographic blazed grating C-T monochromator
Grating	1200 lines/mm	1200 lines/mm
Photocell	Imported silicon photodiode	Imported silicon photodiode
Interfaces	USB & Bluetooth	USB, Bluetooth
WiFi Module	Supported, standard	built-in WIFI module
Wireless Printing	Supported, optional Bluetooth printer	-
PC Software	Supported, optional	-
IoT Module Software	Supported, standard	-
Cuvette Holder	Standard manual 1cm	-
Photometric Range	0--200%T, -0.3-3A	0-200%T, -0.3-3A
Wavelength Mode	Automatic	-
Wavelength Accuracy	±1nm	±1nm
Wavelength Repeatability	±0.5nm	±0.5nm
Spectral Bandwidth	4nm (2nm optional)	4nm (2nm optional)
Wavelength Range	320-1100nm	190-1100nm
Stray Light	0.1T%	0.1T%
Photometric Accuracy	±0.5%T, ±0.004Abs (0~0.5A); ±0.008Abs (0.5~1A)	±0.5%T, ±0.004Abs (0-0.5A); ±0.008Abs (0.5-1A)
Photometric Repeatability	±0.5%T, ±0.004Abs (0~0.5A); ±0.008Abs (0.5~1A)	-
Photometric Stability	±0.15%T, ±0.002Abs (0~0.5A); ±0.004Abs (0.5~1A)	-
Lamp Switching	Automatic, 340nm (adjustable)	Automatic, 340nm (adjustable)
Stability	0.002A (500nm, 3min)	±0.002A (500nm, 3min)
Noise	0.15T%	-