With over 15 years of liquid handling instrument experience, the Topscien engineering and development team set out to design and develop an advanced, next generation pipette. After consulting with more than a hundred researchers and technicians about their evolving requirements, Topscien engineers set their sites on creating an ultra-lightweight, and ergonomic pipettor without any sacrifice in terms of durability, accuracy and precision.

The S Series incorporates many significant features and advantages truly appreciated by today's research laboratories. A unique volume adjustment system reduces the time and inconvenience associated with volume selection. The uniquely positioned volume dial is located above the pipette handle, allowing for easy one handed adjustment with the user's thumb. In addition, the volume display is located on the side of the pipettor that faces the user. Unlike traditional pipettors, the S Series does not require a second hand to rotate the pipettor 180° to observe the display.

All pipettes feature an innovative, asymetrical designed plunger button that can be rotated to match the comfort preference of the user. This button is freely adjustable to rotate continuously between wide setting, resulting in the more traditional feel of a round, larger diameter plunger button, or to a more narrow (thumb shaped) contour preferred by the majority of researchers.

All materials and components were carefully selected to minimize weight and ensure durability and a long service life. Internal components include precision plungers made of stainless steel (2µl to 1000µl models) and PTFE seals. The pipettors have also been designed with service in mind. They are easy to disassemble, and seals are easy to replace. Silicone lubricant is included with each pipettor. Recalibration can be done in the lab - no tools are required and the instruction manual includes full details on how to properly check pipetting accuracy and how to recalibrate if necessary.

The entire pipettor is autoclavable at 121°C and resistant to UV exposure. All pipettes are factory calibrated in accordance with ISO 8655 standards, and include a factory calibration certificate. 

Features :

Large central pipetting button and separate ejection function
True one-handed operation for both right and left handed users
Completely autoclavable at 121℃ ( 20 min ) with volume change lock protection
4 digit volume display with clear visible easy calibration adjustment capability without
   the need for special tools
Changes from factory settings are clearly visible externally 
Short stroke of only 12.5 mm reduces the risk of RSI ( Repetitive Strain Injury )
Corrosion resistant piston and ejector
Color coded for easy selection of the right tip CE-compliant
Rotating dispensing (360 degrees) head for optimal pipetting convenience . 
The standard tip cone design can accomodate a wide range tip brands
The piston operated Micropipettes provide maximum versatility and optimum quality over the entire volume range.
There are 5 different volume 8 and 12 channel micropipettes which covers volumes from 0.5- 300ul
TOPSCIEN multichannel Micropipettes are Iight weight, can be operated with light pipetting force easily and conveniently . 
High chemical and UV resistance 

P Series Variable Volume 8 Channel Micropipette (121℃ autoclavable )