MLX90614 Non-contact Infrared Temperature Sensor for Arduino

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We divide temperature measurement into two types: contact and non-contact. While contact measurement requires the sensor and object to reach thermal equilibrium—which can result in slower readings and ambient temperature interference—non-contact temperature sensing utilizes infrared radiation (IR) to detect surface temperature quickly and accurately, without physical touch. This infrared temperature sensor approach is essential for high-speed industrial contactless temperature measurement. In recent years, non-contact temperature sensing has gained popularity in medical, environmental monitoring, home automation, automotive electronics, aerospace, and military applications. As a versatile MLX90614 Arduino compatible module, it serves as a reliable non-contact thermometer solution for smart systems. Our latest solution, the MLX90614-DCI-based IR temperature sensor, is part of the Gravity series and is designed for precision and ease of integration as an I2C temperature sensor. This infrared temperature sensor measures surface temperature by detecting infrared radiation energy and wavelength distribution. The system includes an optical unit, photoelectric detector, amplifier, signal processing, and output module. The collected IR radiation is converted into electrical signals, amplified, and processed to output accurate temperature readings via the I2C temperature sensor interface. This module features self-calibration, a low-noise amplifier, and a 17-bit ADC with DSP for enhanced signal quality and reliable performance. This MLX90614 Arduino module ensures stable infrared temperature sensor data even in complex environments requiring contactless temperature measurement. Key Features High Accuracy: 0.01 °C resolution infrared temperature sensor Wide Temperature Range: -70.01 °C to +270 °C for diverse MLX90614 Arduino uses Narrow Field of View (FOV = 5°) – ideal for industrial applications and long-distance non-contact thermometer tasks I2C Interface for easy integration as an I2C temperature sensor Low Power Consumption: Only 1.2 mA operating current MLX90614 Arduino sensor Compact Form Factor: 31.5×18 mm infrared temperature sensor module Lightweight: Just 15 g for portable contactless temperature measurement Specifications Model: MLX90614-DCI Infrared Temperature Sensor Operating Voltage: 3.3V ~ 5V for MLX90614 Arduino projects Operating Current: 1.2mA I2C temperature sensor Temperature Range: -70.01 °C to +270 °C contactless temperature measurement Resolution: 0.01 °C high-precision infrared temperature sensor Interface Type: I2C Temperature Sensor Interface Pins: VCC, GND, SCL, SDA MLX90614 Arduino pins Field of View: 5° Narrow FOV Infrared Temperature Sensor Dimensions: 31.5 × 18 mm / 1.24 × 0.7 inches Weight: 15 g lightweight MLX90614 Arduino module Application Scenarios Industrial automation using infrared temperature sensor technology HVAC systems with I2C temperature sensor monitoring Robotics integrated with MLX90614 Arduino sensors Wearables and smart health non-contact thermometer projects Automotive diagnostics for contactless temperature measurement Non-contact safety monitoring with high-precision IR sensing Package Includes Gravity: I2C Non-contact IR Temperature Sensor ×1 JST PH2.0 4-Pin Cable ×1 Reference Product wiki More Documents Show more