How many pieces are in the Temperature Sensor?

Temperature Sensor contains 1 pieces.

When was the Temperature Sensor released?

Temperature Sensor was released in 1999.

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No. 9755

RCX

Temperature Sensor

The Temperature Sensor is a vital component for early LEGO robotics.

Time on the shelf Retired

Released Jan 1999

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Before you buy

Who it's for: Beginner build For LEGO Technic and Robotics enthusiasts interested in expanding their RCX system capabilities.
Build: 1 pieces · about 0.1 hours Build time is an estimate.
Cost: Budget Next to other LEGO sets. Check the store for today's price.
Availability: Likely retired

★★★☆☆ 3.5 AI-generated review score, not a customer rating

Fans appreciate this sensor for completing their RCX sets, but acknowledge its limited functionality compared to modern LEGO sensors. It's primarily valued as a historical piece for LEGO robotics enthusiasts.

📝 Our Take

The Temperature Sensor is a vital component for early LEGO robotics. This sensor allowed the RCX brick to measure temperature, enabling more complex and responsive robotic creations.

This set is perfect for LEGO enthusiasts interested in the history of LEGO robotics. While it's a single-piece set, it's a key element for expanding the capabilities of the RCX system and exploring early programmable functions.

Skip this if you're not invested in the vintage RCX system. This sensor is only useful if you already own the RCX brick and related components. Consider modern LEGO robotics sets like LEGO Boost or Mindstorms if you're looking for current-generation technology.

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How does the Temperature Sensor enhance the capabilities of the RCX brick? What are some creative ways to use temperature data in LEGO robotics projects? How does this sensor compare to modern LEGO temperature sensors? Is this set a worthwhile addition for collectors of vintage LEGO robotics?

🧱 Building Experience

🧩

Pieces

⏱

0.1h

Estimated Build Time

📊

Beginner

Difficulty

Build Highlights:

Simple integration with the RCX brick
Adds environmental sensing capabilities to your LEGO robots
Explore temperature-based programming logic
Enhance existing RCX projects with new functionality

📈 Investment Analysis

→ Price stable

Investment Grade

Retired

As a single-piece set, the Temperature Sensor's investment potential is limited. Its value lies primarily in its historical significance within the LEGO robotics ecosystem and its functionality for those still using the RCX system. Demand is niche, primarily driven by collectors of vintage LEGO technology. While the price trend is stable, significant appreciation is unlikely. The retirement risk is minimal, as it's already retired, but its value is tied to the RCX system's continued relevance.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

⚖ Compare Similar Sets

Compared to modern LEGO temperature sensors, the 9755-1 Temperature Sensor is rudimentary but historically significant. Modern sensors offer greater precision and ease of integration with newer platforms. However, this set is unique due to its compatibility with the RCX system, making it a must-have for collectors and enthusiasts of that era. Consider modern Mindstorms or Boost sets for advanced features.

📦 Parts Inventory

Official piece count: 1
Parts cataloged in this inventory: 1 unique parts, 1 pieces

Missing a piece? Check this set piece by piece, with look-alike colors flagged and element IDs for replacements.

The set contains only one part, a temperature sensor with a short cable. This sensor is unique to the RCX system and enables temperature-based programming.

🛒 Where to Buy

eBay

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💎 Notable Parts

Yellow Sensor, Temperature, Short Cable (1x)

💡 MOC Potential

🤖 Integrate with modern LEGO robotics platforms using custom adapters.

🌳 Create a miniature weather station display.

🚗 Add temperature-sensing capabilities to LEGO vehicle MOCs.

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Inventory Statistics

Inventory version 1

1 Unique Parts

1 Official Piece Count

1 Cataloged Inventory Pieces

0 Minifigures

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Temperature Sensor