1.light source: 12 v, 20 w. halogen lamp 2.testing modes kinetics linear end point non-linear end point single wavelength dual wavelength sample blank 3.wavelength 8 interference filters: 340,380,405,492,510,546,578 and 630 nm. 4.wavelength accuracy: 2nm 5.absorbency range: 0--2.5a 6.cuvette : flowing, 33 ul 7.aspiration: peristaltic pump with programmable aspiration volume 8.number of reagents: three reagent trays with 16 positions each: totally 48 reagents 9.sample and reaction plate: three reaction plate, with 45 sample positions. 10.calibration: automatic with standards or calibrators. 11.testing speed: 60-100ps/h( kinetics ), 160ps/h (end point ) 12.power: 220v. 50 hz. 13.rs-232 interface and outer printer