Type-Microprocessor Based,Set Zero (Auto zero)-By Press Push Switch with Audio response,Wavelength Range-405-700nm,Filters-Built-In 8 Digital Filters>30000 Hours Life,Filters Wavelength-405nm,450nm,480nm,520nm,540nm,578nm,620nm,700nm,Display parameters-Absorbance and % Transmittance,pHotometric Range-0 to 1A, pHotometric Resolution-±0.01A,Detector-Silicon pHoto Diode,Accuracy-±0.01 0.D., Stability-±0.02 O.D. per hour,Light source-Highly Accurate LED Source,Sample Volume-1ml Minimum,Sample Chamber-Accepts 12.5mm Round test tube,Read out-16×2 AlpHa numeric LCD,Weight-1Kgs (Approx),Power supply-230±10V,50Hz, Dimensions-275×1879×94mm(Approx)