"Number Reading Variable Volume Pipette" is a type of pipette commonly used in laboratories for accurate and precise liquid handling. It is designed to allow users to adjust and set the desired volume of liquid to be aspirated and dispensed.

 

The key feature of the number reading variable volume pipette is its ability to display the selected volume directly on the pipette itself. This eliminates the need for external volume scales or separate volume adjustment devices, making the pipetting process more convenient and efficient.

 

The pipette typically consists of a handle, a plunger, and a disposable pipette tip. The handle contains the volume adjustment mechanism and a digital or analog display that shows the selected volume. The plunger is used to aspirate and dispense the liquid, and the disposable pipette tip ensures accurate and contamination-free transfers.

 

Number reading variable volume pipettes are available in a range of volume capacities, allowing users to select the appropriate pipette for their specific liquid handling needs. The volume adjustment mechanism typically includes a dial or a push-button system that allows precise and easy adjustment of the desired volume.

 

These pipettes are widely used in various laboratory applications, including molecular biology, microbiology, biochemistry, and clinical diagnostics. They are particularly useful when working with samples that require accurate and precise volumes, such as DNA/RNA samples, reagents, or cell cultures.

 

The number reading feature provides clear visibility of the selected volume, enhancing accuracy and reducing the risk of pipetting errors. Some pipettes may also have additional features like a locking mechanism to prevent accidental volume changes or a tip ejector for convenient tip disposal.

 

To ensure accurate and reliable results, it is important to calibrate and maintain the pipette according to the manufacturer's instructions. Regular calibration and proper pipetting techniques, such as proper tip immersion and gradual plunger release, are essential for precise and reproducible liquid transfers.

 

In summary, the number reading variable volume pipette is a versatile and user-friendly tool for precise liquid handling in the laboratory. Its ability to display the selected volume directly on the pipette simplifies the pipetting process and enhances accuracy. With a range of volume capacities available, this pipette is widely used in various scientific disciplines for efficient and reliable liquid transfers.