A pipette (110) includes an ejector member (140) with an ejector end (142) configured to be moved from the retracted position (147a) to the extended position (147b) to eject a gripped pipette tip (120) from an end portion (132) of the body (130) of the pipette (110). The pipette (110) further includes an adjustment device (160) configured to adjust the extended position (147b) of the ejector end (142) with respect to the body (130) and a lock device (200) configured to selectively inhibit operation of the adjustment device (160) to adjust the extended position (147b) of the ejector end (142).
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