Serologicals vs. Repeaters: What’s the Difference?

Both serological pipettes and repeater pipettes offer unique benefits that can help any laboratory, but each one is best suited for certain purposes. If you’re in the process of deciding between the numerous serologicals and repeaters on the market, our team at can help you determine the best one for you using our comparison of these two pipettes below.


Repeater pipettes are used for their ability to set and dispense specific volumes into multiple receptacles, eliminating the need to aspirate between dispenses. CEppendorf Repeater M4 | Pipette Any Solution Continually | Pipette.comontrary to standard pipettes, repeaters use a filling and dispensing level as opposed to a plunger and give you the benefit of saving time and effort during your experiment.

Eppendorf Repeater M4

The Eppendorf Repeater M4 is an example of a great repeater pipette with a high degree of efficiency, dispensing flexibility and user-friendliness. It offers the ability to dispense any liquid in a precise and accurate manner regardless of its viscosity, density and volatility. In addition, its volume ranges from 1ul to 10ml in order to accommodate various kinds of experiments.


Serological pipettes are temperature calibrated and best for lab technicians that need to transfer small amounts of liquid in the range of 1 mL to 50 mL. Typically, they are used to transfer these liquids between receptacles, mix chemical solutions or lay reagents that possess varying densities.

Additional Tools

Due to the high level of attention and detail required for the procedures mentioned above and the levels of liquids that are typically aspirated and dispensed using serological pipettes, it is necessary to use a controller/pipet-aid in order to help you control your dispensing down to the millimeter. Take a look at our selection here  for all of the serological products and pipet aids that you need.


Serological pipettes offer benefits over other types of pipettes in terms of visibility, volume accuracy, optical transparency and cell clumping. For smaller sized experiments with shorter pipetting series’, these pipettes are a great choice that will give you the accuracy and clarity that you need to conduct effective research.


For larger laboratory experiments that require a great deal of pipetting and possess long pipetting series’, repeater pipettes are ideal in order to minimize the amount of manual labor required and maximize efficiency. Conversely, for smaller-sized experiments and those that require a high degree of volume accuracy or minimal cell clumping, serological pipettes are the best choice.

Ultimately, both serologicals and repeaters are great tools that can really help you get the results that you need, but after considering the above differences between the two you should have a better idea of the product best suited for your research. Larger experiments should focus more on repeater pipettes, whereas smaller experiments with shorter pipetting series’ typically benefit most from serological pipettes. Take a look at our vast selection of both of these unique pipettes today and get the best price on the market!