Visible Spectrophotometer LVS-A21 is single beam bench top device with 325 to 1000 nm wavelength range, and offers spectral bandwidth of 2 nm. Designed with 7 inch multicolor touch-screen and good human-computer interface. Features with T, A, C work mode and Czerny-Turner monochromator type unit. Designed with holographic blazed grafting monochromator has the advantages of high wavelength accuracy, good monochromaticity and low stray light. The high accuracy and good reproducibility and stability of measurement reading instrument.