Product Description LX 101: 1-50,000 Lux, 2000/20000/50000LX 1330A: 1-1,00,000 Lux, 2000/20000/100000 Rotating Head. Product Specification Code No. LUX Resol LX 101 1-50000 10/250/500* LX 1330A 1-100000 1/10/100