MLX90614 IR Temperature Sensor Module (GY-906) | Non-Contact Infrared Thermal Sensor

The MLX90614 IR Temperature Sensor Module is a high-accuracy, non-contact thermal sensor designed to measure temperature without physical contact. Using infrared technology, it can detect the temperature of objects such as hot surfaces, machines, or even the human body from a short distance.

This module integrates a thermopile sensor and signal processing unit in a compact design, delivering precise readings with minimal noise. It communicates via I2C protocol, making it easy to interface with Arduino, ESP8266, ESP32, and other microcontrollers.

Why This Sensor is Useful

In many situations, direct contact temperature measurement is not possible or safe. This sensor solves that problem by allowing you to measure temperature remotely.

It is ideal for applications where:

• Objects are too hot to touch
• Continuous monitoring is required
• Hygiene and safety are important

Typical Usage

The module connects easily using four pins: VCC, GND, SDA, and SCL. Once connected, it can provide accurate temperature readings in real time.

You can use it to:

• Display temperature on an LCD or OLED
• Send alerts when temperature exceeds limits
• Monitor machines or electronic devices
• Build contactless temperature systems

Key Features

• Non-contact infrared temperature measurement
• Operating voltage: 3V to 5V (compatible with Arduino and ESP boards)
• I2C digital communication interface
• Low power consumption (approx. 2mA)
• High accuracy up to ±0.5°C
• High resolution up to 0.01°C
• Wide measurement range:
  • Object temperature: -70°C to +380°C
  • Ambient temperature: -40°C to +125°C
• Built-in DSP, ADC, and low-noise amplifier
• Supports PWM output option
• Factory calibrated for reliable performance
• Compact and easy to integrate

Applications

• Non-contact temperature measurement systems
• Industrial equipment monitoring
• Body temperature measurement devices
• Smart home and HVAC systems
• Automotive sensing applications
• Thermal monitoring in electronics (CPU, motors)
• Printers, copiers, and appliances
• Agriculture and livestock monitoring
• Multi-sensor temperature networks

Technical Specifications

• Model: MLX90614 (GY-906 Module)
• Operating Voltage: 3V – 5V
• Operating Current: 2mA
• Communication: I2C (SMBus compatible)
• Object Temperature Range: -70°C to +380°C
• Ambient Temperature Range: -40°C to +125°C
• Accuracy: ±0.5°C (typical)
• Resolution: 0.01°C
• PCB Size: 11mm × 17mm
• Output: Digital (I2C) / Optional PWM

Package Includes

• 1 × MLX90614 IR Temperature Sensor Module (GY-906)