SparkFun
SparkFun High Precision Temperature Sensor - TMP117
Best high-precision sensor for developers needing accurate, low-power thermal monitoring.
The SparkFun Qwiic TMP117 Breakout is a high-precision temperature sensor featuring an I2C interface for easy integration. It offers exceptional accuracy, measuring temperatures within ±0.1°C across a -20°C to 50°C range, with a broader operational range from -55°C to 150°C. This sensor boasts a 16-bit resolution for detailed readings and very low power consumption, minimizing self-heating effects. Designed for convenience, it's Qwiic-enabled for solder-free connections, but also provides standard 0.1"-spaced pins for breadboard use. Programmable limits and digital offset enhance system correction capabilities.
$16.95
Owner Satisfaction
4.5
/ 5
Category Rank
478
/ 1009
#478 in Integrated Circuits & Chips
Price vs Category Average
-80%
Below average
Who it's for
- Engineers requiring medical or scientific grade thermal accuracy
- Prototypers needing rapid, solder-free hardware integration
- Developers building industrial systems requiring certified calibration
Who should skip it
- Hobbyists working with strict, low-cost project budgets
- Users needing extreme precision across wide temperature extremes
- Engineers deploying sensors in harsh or exposed environments
Performance breakdown
Integration Ease
The Qwiic ecosystem makes setup virtually effortless for any skill level.
Measurement Accuracy
Industry-leading precision makes this a top-tier choice for critical thermal monitoring.
Power Efficiency
Minimal current draw ensures long-term battery life and prevents thermal interference.
Operational Versatility
Broad temperature range handles extreme environments with consistent, reliable performance.
Data Resolution
High-bit resolution captures subtle thermal shifts that standard sensors often miss.
Calibration Flexibility
Digital offset features allow for precise system-level tuning and error correction.
Key Specs
16-bit resolution, 0.0078°C
±0.1°C (max) accuracy from –20°C to 50°C
Operating temperature range
-55°C to +150°C
Operating voltage range
1.8V to 5.5V
Low power consumption
3.5µA (1-Hz conversion cycle)
NIST traceability
Features
- High precision temperature sensing with ±0.1°C accuracy
- I2C interface with Qwiic system for easy, solder-free connections
- 16-bit resolution for detailed temperature readings
- Low power consumption minimizes self-heating
- Programmable temperature alert limits
- Digital offset for system correction
What customers say
Customers consistently praise the SparkFun TMP117 for its exceptional precision and reliable temperature readings, making it a standout choice for projects demanding accuracy. Many appreciate its straightforward integration into various microcontroller platforms, highlighting the ease with which users can achieve highly accurate environmental monitoring. The sensor's consistent performance and minimal drift are frequently noted, reinforcing its reputation as a dependable component for sensitive applications. This combination of high accuracy and user friendly implementation contributes significantly to its positive reception.
Know before you buy
The TMP117 offers significantly higher precision, providing ±0.1°C accuracy without the need for complex calibration. It also includes a digital interface, which simplifies data integration compared to analog sensors.
Yes, the sensor is rated for an operating range of -55°C to +150°C. However, note that the peak ±0.1°C accuracy is specifically optimized for the -20°C to 50°C range.
Low power consumption is critical because it minimizes self-heating, which can otherwise skew temperature data. By drawing only 3.5µA during a 1-Hz conversion cycle, the sensor ensures your readings remain accurate and unaffected by its own thermal output.
Not if you are using the Qwiic ecosystem. The board features Qwiic connectors for plug-and-play integration, though it also includes standard 0.1"-spaced pins if you prefer to solder it to a breadboard.
These limits allow you to set specific high or low temperature thresholds directly on the sensor. The device will trigger an alert when these limits are crossed, which helps reduce the processing load on your main microcontroller.
Yes, the sensor is NIST traceable, making it a reliable choice for applications requiring high-precision, verifiable temperature data.
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