Accurate Liquid Extraction:Lab Micropipette Volume Range: 0.1ul to 10ml.Increase or decrease the volume of aspirated liquid by rotating the piston button.The digital window display allows for more accurate volume set up and easier volume recognition Guaranteed Quality :Calibrated to ISO8655 standards for precision and accuracy. All pipettes are factory calibrated and adjusted to give the volumes as specified with distilled or deionized water to make sure highly accurate.Each micropipette supplied with an individual test certificate.Patent technique with nearly 20 years manufacturing experience guarantee Excellent quality Easy to Use :Light weight and designed for ergonomics, adjustable rotation, flexible for convenient manual operation.It has a blow-out function when draining liquid, and no liquid remains Long service life :pipettes are made of chemically resistant materials and the micro pipette tips are removable.If the volume is inaccurate when used, it can be recalibrated with an analytical balance and continue to be used.Long lifetime over 100,000 times pipetting Wise Use :Ideal for laboratory, industrial, food, cosmetic experiments, pool water testing and general chemical sampling, etc.If you have any issue, we're always here to help you.WESTTTUNEenables to continually make improvement of products based on suggestiox, Manufacturer: SOYWIM