1.Beautiful, economical and practical for laboratory environments; 2.Color touch screen, making the information more intuitive peristaltic pump and the operation more convenient; 3.Intelligence expert operating system can guarantee smooth operation even the operator never used such kind of machine before; 4.Unique dispensing function, simple operation, suitable for general accuracy of the liquid-dispensing, reduce the human operator error, improve work efficiency; 5.Calibrating flow function. 6.Intelligent temperature-control technology reduces working noise. 7.Reversible direction, start/stop and full speed , state memory (power-down memory). 8.Speed resolution is above 0.1 rpm. 9.Stainless steel housing , easy to clean , excellent resistance to the corrosion of the acid , alkali, sodium and the organic solvents.. 10.Super anti-interference feature , wide input voltage range, acceptable for the complex power environment. 11.Optional footswitch or timer for dispensing fluid. 12.Rs485 interface , modbus protocol is available , easy to connect other equipments. For pump head: yz15, yz25, dg Flow range: 0.006~2300(ml / min) Technical parameters Speed range: 0.1 ~ 600 rpm Speed resolution: 0.1 rpm, with accuracy 0.5% Display: 65535 color lcd + touch screen Supply voltage: ac220v &ac110v, 50/60hz Power ratio: less than 60w Working environment temperature: 0 ~ 40 centigrade. Relative humidity 80% Protection level: ip31 Dimensions: (l*w * h) 223mm*150mm*195mm Weight: 5.2kg External control functions: External control start and stop, external control orientation, isolated, ttl level input; 0-5v/10v, 4-20ma, 0-10khz speed control input; support rs485 bus, modbus communication protocol. Dimensions:223*150*195mm Weight :4.7kg/4.9kg/5.2kg