Red, made of natural rubber with high elasticity. For pipetting poisonous, radioactive, bacterial, malodorous or acidic substances. Precise pressure valves enable very small quantities of liquid to be pipetted, even allowing for pauses.
Operation is simple and one-handed.
Press on valve A while simultaneously squeezing the ball: a vacuum is created in the ball.
Press on valve S: the vacuum causes the pipette to fill.
Press on valve E: air ingress, the pipette empties.
To empty completely: press on valve S while simultaneously squeezing the ball.
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