LEGO® NXT Ultrasonic Sensor 9846

MINDSTORMSNXT20061 piecesRetired

Value new · sold average, 6 months

$10.74

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Prices updated Oct 10, 2026, 23:31 UTC.

Launch price at LEGO$39.99

Used · sold avg, 6 months—Too few sales

What is LEGO NXT Ultrasonic Sensor 9846 worth?

A new, sealed NXT Ultrasonic Sensor (9846) sold for $10.74 on average over the last six months, across 1 sales. LEGO no longer sells it in the US, so collectors set the price (it launched at $39.99).

Set facts

Set number: 9846
Pieces: 1
Released: 2006
Theme: MINDSTORMS
Price per piece: $10.74
Status: Retired

Questions

Is LEGO 9846 NXT Ultrasonic Sensor retired?

Yes. LEGO no longer sells NXT Ultrasonic Sensor in the US, so its value now comes from what collectors pay for it: $10.74 new on average over the last six months.

How are these prices calculated?

Values are quantity-weighted averages of real sales of the set over the last six months, updated every night. LEGO retail prices come from Brickset. Other currencies are converted at the European Central Bank's daily rate.

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