BT103S speed-variable peristaltic pump adopts high quality closed-loop stepper motor drive, speed range 0.1?100rpm, speed accuracy<±0.2%?one channel flow range0.0001?480ml/min. Through Lead Fluid APP software, the pump can be controlled remotely and running status can be monitored in real time.RS485 communication, MODBUS protocol is available,the pump through a variety of signal modeis easier to be connected with other equipments, such as computer, human machine interface and PLC .