Model:LJ-50 Specification: Parameters: pH, Nitrite, Specific Gravity, Ascorbic Acid, Blood, Glucose, Bilirubin, Urobilinogen, Ketone, Leucocytes, Protein Measurement Principle: Dual wavelength reflectance method Measuring Wavelength: 3 LED Wavelength (550,620,720nm) Sample supply: manual dipping Reaction time: 60 seconds Throughput: Normal mode, 60 samples /hour Continuous mode, 125 samples /hour Display: LCD screen Memory capacity: 5000 results Strip: 10G /11G urine reagent strips Interface:Serial port(RS232), parallel port (For external printer), PS/2(Por barcode reader)