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9845 LEGO Mindstorms NXT Sound Sensor thumbnail image

9845 LEGO Mindstorms NXT Sound Sensor
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9845 LEGO Mindstorms NXT Sound Sensor
  • Sound Sensor thumbnail
  • Sound Sensor thumbnail

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Sound Sensor since January 2016. High accuracy
LEGO 9845 Sound Sensor was a Mindstorms set released in 2006. It contains a Sound Sensor for the Mindstorms NXT that can react to sound commands. It was retired in January 2016 with a lifespan of 99 months. Today's value for a new/sealed Sound Sensor is estimated around $55 with a average yearly gain of 4% and is expected to level off closer to 1% soon. The current used prices for Sound Sensor can be found in the range of $11 and $13 depending on the set's condition, with an average price of $11 if it is in good overall condition.
All regions

For Sale (New/Sealed)
(US) eBay listings for Sound Sensor
~$52.95
-3.0%
(NL) BrickLink store Beauty & the Bricks
$53.63
-1.8%

Sale Trends

This chart shows the sales trends (number sold) of new/sealed 9845 Sound Sensor.

Sets in Mindstorms / NXT

8527 Mindstorms NXT

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 577
Availability Retired
8527 LEGO Mindstorms NXT
Retail $249.99
Value $369.00
Growth  47.6%
Annual growth 2.3%

8529 Connector Cables for Mindstorms NXT

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 7
Availability Retired
8529 LEGO Connector Cables for Mindstorms NXT
Retail $9.99
Value $18.81
Growth  88.3%
Annual growth 5.0%

8528 Converter Cables for Mindstorms NXT

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 3
Availability Retired
8528 LEGO Converter Cables for Mindstorms NXT
Retail $9.99
Value $56.17
Growth  462.3%
Annual growth 6.9%

9798 Rechargeable Battery

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9798 LEGO Mindstorms NXT Rechargeable Battery
Retail $54.99
Value $58.19
Growth  5.8%

9833-2 Transformer

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9833-2 LEGO Mindstorms NXT Transformer
Retail $23.99
Value $25.92
Growth  8.0%

9841 NXT Intelligent Brick

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9841 LEGO Mindstorms NXT Intelligent Brick
Retail $169.99
Value $212.00
Growth  24.7%
Annual growth 2.9%

9842 Interactive Servo Motor

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9842 LEGO Mindstorms NXT Interactive Servo Motor
Retail $24.99
Value $33.80
Growth  35.3%
Annual growth 3.2%

9843 Touch Sensor

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9843 LEGO Mindstorms NXT Touch Sensor
Retail $24.99
Value $30.51
Growth  22.1%
Annual growth 3.5%

9844 Light Sensor

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9844 LEGO Mindstorms NXT Light Sensor
Retail $24.99
Value $16.99

9846 Ultrasonic Sensor

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9846 LEGO Mindstorms NXT Ultrasonic Sensor
Retail $39.99
Value $53.41
Growth  33.6%
Annual growth 4.2%

9847 Bluetooth Dongle

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9847 LEGO Mindstorms NXT Bluetooth Dongle
Retail $32.50
Value $22.00

Compass Sensor for Mindstorms NXT

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
LEGO Compass Sensor for Mindstorms NXT
Retail $54.99
Value $71.57
Growth  30.2%
Annual growth 3.4%
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My Collection

Sound Sensor Reviews

43 reviews
4.5
Collectors
Investors
LEGO Engineering
“The Sound Sensor can measure sound pressure levels up to 90 dB – about the level of a lawnmower. Sound pressure levels are extremely complicated, so the Sound Sensor readings on the MINDSTORMS NXT are displayed in percent [%]. The lower the percent the quieter the sound.”
Full review at www.legoengineering.com

About Mindstorms NXT

The LEGO Mindstorms NXT programmable robotics kit released by LEGO in July 2006, replacing the first-generation LEGO Mindstorms kit. The kit also includes NXT-G, a graphical programming environment that enables the creation and downloading of programs to the NXT.

NXT consists of 30 sets that ran from 2006 to 2011. As of today, 8527 Mindstorms NXT is the most valuable NXT set with an estimated new/factory sealed value of $369.
Summary
Mindstorms NXT Sound Sensor set 9845 was released on October 24, 2007, retailing for $35, it has since been retired. New, unopened sets are valued at $55, used ones can be found for $11.
Read more
Your robot's "ears!

Using the NXT Brick (sold separately), the Sound Sensor allows your LEGO® MINDSTORMS® NXT robot to hear! The Sound Sensor is able to measure noise levels in both dB (decibels) and dBA (frequencies around 3–6 kHz where the human ear is most sensitive).

Includes 1 Sound Sensor.
Does not include connector cable.
This is the individual component, and does not include the NXT Intelligent Brick, software or any accessories. It requires the complete LEGO MINDSTORMS NXT set (#8527 or #8547) for use.
Description provided by LEGO©