uniSPEC 4 is a reasonably priced UV/VIS-spectrophotometer suitable for advanced pharmaceutical, biochemical and clinical lab applications as well as quality control and routine measurements such as kinetics, wavelength scans, quantitative analysis, multi-wavelength and DNA/Protein analysis. The instrument provides excellent performance for all types of measurements.
The included software enables a complete control of the spectrophotometer from a computer using the built-in USB port. The software can be updated through the internet (for stand-alone instruments). In case of a sudden power cut the data can be restored. It is possible to store and save 200 calibration curves.
Automatic wavelength setting, auto-zero and blank measurements. A Real-time clock to help state date and time of results. Both lamps can be individually turned on/off to extend the durability. A pre-adjusted lamp design allows a fast and easy lamp replacement.

Specifications
Optical System: Single beam, Grating 1200 lines/mm, Silicium Photodiode-detector
Wavelength Range: 190-1100 nm
Bandwidth: 1.8 nm
Wavelength Accuracy: ±0.3 nm
Wavelength Repeatability: 0.2 nm
Wavelength Setting: Automatic
Photometric Accuracy: ±0.3%T
Photometric Repeatability: 0.2%T
Photometric Range: -0.3-3A, 0-200%T, 0-9999C
Stability:  ±0.002A/h at 500 nm
Baseline Flatness: ±0.001 A/h
Stray Light: ≤0.05%T at 220 nm, 360 nm
Data Output: USB port
Printer Port: Parallel port
Display: 320 x 240 Dots LCD
Standard Cell Holder: 4-position 10mm cell changer
Lamps: D2 Lamp and W Lamp
Dimension (W x D x H): 625 x 430 x 206 mm
Weight: 28 kg
Guarantee: 3 years