Positive-Displacement Pipette MR-250 - Overview - METTLER TOLEDO

Positive-Displacement Pipette MR-250

Positive Displacement Pipetting.Pos-D™ positive-displacement pipette, 50-250 μL, for dense, viscous or volatile liquids. Uses Rainin capillary-pistons #17008608 (MR-250)

Problem Liquids? No Problem

Pos-D is designed and especially suited for non-aqueous liquids: dense, viscous, high vapor pressures, etc.


With its natural feel and ergonomic finger-hook, the Pos-D fits comfortably in your hand. And the display is always visible.

No Cross-Contamination

Disposable capillaries/pistons, with direct contact between sample and piston, means no aerosols and no cross-contamination.

Material No.: 17008579

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Ergonomic Positive Displacement Pipette

Problem-free pipetting of problem Liquids: The Pos-D is specially suited for liquids with high densities, viscosities or vapor pressures. Given the disposable capillaries and pistons, positive displacement absolutely eliminates cross-contamination from aerosols, samples or pipette.
A disposable piston, which moves within a plastic capillary, makes direct contact with the liquid.
The positive wiping action of the piston against the capillary wall assures complete dispensing without droplets.

The pre-assembled capillary tips are easy to use and
also fit Gilson Microman®.

Specifications - Positive-Displacement Pipette MR-250
Volume Range
50 µL – 250 µL
Increment (manual)
2 µL
50 µL; 100 µL; 250 µL
Accuracy ±
3 % / 1.5 µL ; 1.7 % / 1.7 µL ; 1 % / 2.5 µL
Precision ±
0.6 % / 0.3 µL ; 0.3 % / 0.3 µL ; 0.2 % / 0.5 µL
Tip Technology
Product Family
Pipette Type
Material Number(s)


Electronic Pipette Accessories

Three self-adhesive disks for mounting on non-metallic surfaces.

Material No.: 17004992

Built-in magnets for fast mounting on metal surfaces.

Material No.: 17003024

Rainin Carousel Stand

Material No.: 17001255


Positive Displacement Pipette Tips

Material No.: 17012268

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Positive-Displacement Pipette MR-250