Precise Pipetting:LCD screen displays battery level and has adjustable coarse speed settings. Easily adjust coarse speed with the speed control button, then control aspiration and delivery speed with your fingertips for precise pipetting. 2 Drainage Modes:You can freely choose the mode during the drainage process: gravity drainage mode, electric drainage mode. No matter which method is used, the speed can be flexibly adjusted through finger pressure and is easy to operate. Single handed operation for both right-and-left hand operators. Adjustable 8-Level Speed:At maximum motor speed, the pipette filling machine can fill 50ml of liquid in 10 seconds, dispensing liquid faster and preventing droplets from being left behind. Compatible with most of the plastic and glass pipettes from 0.1-100ml. Anti-back-sucking:The electric pipette adopts 0.45 micron hydrophobic filter membrane inside, which can effectively prevent the liquid from flowing back into the pipette during the pipetting process, which greatly improves the service life of the product. Range of Application:We use a large-capacity built-in lithium battery, it can work continuously for more than 8 hours after being fully charged. It is widely used in clinical diagnostic experiments, biological experiments, medicinal chemistry experiments, environmental experiments, etc.