●High Accuracy and Precision: Each pipette is calibrated in accordance with ISO8655 and each micro pipette is supplied with an individual test certificate. ●Wide Tip Compatibility: It is compatible with most universal tip brands covering full volume range ●Humanization: ergonomic design, lightweight plunger force can reduce repetitive strain injury. The digital display can clearly read the volume setting. Tip ejector for easy and fast needle tip replacement. ●Easy to calibrate: Each pipette is fully calibrated before shipment. Its easy to calibrate for the users with the tools and instruction supplied. ●1 Year Warranty and Satisfied Service: we are manufacturer which has more than 20 years experience in the field of lab products. . Any quality problem, we will provide free replacement