SKU: SENS-3358
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Adafruit MLX90632 FIR Remote Thermal Temperature Sensor - Medical Grade STEMMA QT / Qwiic

₹2,709.00 (Inclusive of all taxes)
Out of Stock

The Adafruit MLX90632 is a medical-grade, non-contact far-infrared (FIR) temperature sensor module featuring STEMMA QT / Qwiic connectors for plug-and-play I2C interfacing with Arduino, Raspberry Pi, and other 3.3V/5V microcontrollers. It provides high-precision object temperature measurement without physical contact.

Features

  • Medical-grade MLX90632 sensor with ±0.2°C accuracy in the 35–42°C body temperature range.
  • Non-contact FIR sensing with a 50° field of view, optimized for close-range measurements.
  • Plug-and-play STEMMA QT / Qwiic I2C connectors for solder-free system integration.
  • Onboard voltage regulation and level shifting for seamless 3V & 5V logic compatibility.
  • Ultra-low power operation with ~1 mA typical supply current and configurable sleep mode.

Out of stock

Description

The Adafruit MLX90632 module integrates the Melexis MLX90632SLD-DCB sensor, a factory-calibrated far-infrared thermopile designed for medical-grade precision. It measures object temperature via passive infrared radiation detection, making it ideal for non-invasive monitoring of sensitive, moving, or electrically isolated targets. The sensor’s 50° field of view ensures accurate readings at close proximity.

The board includes full signal conditioning, voltage regulation, and I2C level shifting, providing a robust interface for embedded systems. It outputs both object and ambient temperature readings directly via I2C, requiring minimal microcontroller processing. This module is engineered for reliable performance in healthcare devices, industrial equipment monitoring, and IoT applications where contactless sensing is critical.

Key Features

  • Medical-grade factory calibration ensures high accuracy (±0.2°C) for body temperature and sensitive measurements.
  • Far-infrared (FIR) thermopile sensor enables precise, non-contact temperature sensing without emissivity adjustments for many materials.
  • Wide object temperature measurement range from -20°C to 100°C in extended operating mode.
  • Integrated STEMMA QT and Qwiic-compatible JST-SH connectors enable solder-free, daisy-chainable I2C connections.
  • Onboard 3.3V regulator and logic level shifting guarantee compatibility with 3V and 5V microcontroller platforms.
  • Ultra-low power design features a typical supply current of ~1 mA and includes a configurable sleep mode for battery-powered applications.
  • Compact form factor (25.5mm x 17.7mm) with a standard 0.1" header footprint for alternative soldered connections.
  • High-value build optimized for prototyping, product development, and low-volume production in medical and industrial systems.

Applications

  • Non-contact medical thermometry for forehead or ear temperature screening devices.
  • Industrial equipment monitoring for detecting overheating in motors, bearings, or electrical components.
  • IoT and smart home sensors for monitoring surface temperatures of appliances or in occupancy detection systems.
  • Scientific research and prototyping requiring precise, non-invasive temperature measurement of biological or chemical samples.
  • Embedded system integration in robotics for object temperature sensing and thermal awareness.

Technical Specifications

Sensor ModelMLX90632SLD-DCB
Item TypeFIR Infrared Remote Temperature Sensor Module
Operating Voltage3.3V (Onboard Regulation from 3V-5V Input)
Typical Supply Current~1 mA
InterfaceI2C (Configurable Address)
Connector TypeSTEMMA QT / Qwiic (JST-SH)
Field of View50°
Object Temperature Range-20°C to 100°C (Extended Mode)
Medical Accuracy (35–42°C)±0.2°C
Standard Resolution0.02°C
Medical Resolution0.01°C
Dimensions (L x W)25.5 mm x 17.7 mm
Weight1.7 g

Frequently Asked Questions

What is the operating voltage range for the MLX90632 module, and does it support 5V logic?

The module includes an onboard 3.3V regulator, accepting an input voltage between 3V and 5V. It also features built-in level shifting on the I2C lines, making it fully compatible with both 3.3V and 5V microcontroller logic levels without requiring external components.

How do I connect this sensor to my Arduino or Raspberry Pi?

Use the included STEMMA QT or Qwiic-compatible JST-SH cable for a plug-and-play I2C connection to compatible host boards. For standard microcontrollers, you can solder the provided header pins and connect the VCC, GND, SDA, and SCL pins directly to your system's I2C bus.

What is the field of view, and how does it affect measurement accuracy?

The sensor has a 50° field of view (FOV). This wide FOV means it averages the temperature over a relatively large area at a distance. For highest accuracy, position the sensor close to the target object (typically within a few centimeters) to ensure the target fills the sensor's FOV.

Can this sensor measure ambient (air) temperature as well as object temperature?

Yes, the MLX90632 sensor chip measures both the object temperature (via IR detection) and its own die temperature, which serves as a proxy for ambient temperature. Both values are available via the I2C interface for your application to read and utilize.

Is the sensor pre-calibrated, and what is its accuracy?

Yes, the Melexis MLX90632 sensor is factory-calibrated. It delivers medical-grade accuracy of ±0.2°C within the critical 35°C to 42°C range for body temperature applications. Over its full extended range (-20°C to 100°C), accuracy is within a few tenths of a degree, as specified in the datasheet.

Package Includes

  • 1 x Adafruit MLX90632 FIR Remote Thermal Temperature Sensor Module
  • 1 x Header Pin Strip

Additional Information

Weight 0.0017 kg
Dimensions 2.55 × 1.77 cm