MLX90614 temprature sensor

The MLX90614 Temperature Sensor is a contactless infrared thermometer with both ambient and object temperature measurement. Using IR thermopile technology, it measures surface temperature without physical contact for hygienic, safe, and non-invasive applications.

Key Features

• Non-contact temperature measurement via infrared
• Measures object temperature from -70°C to +380°C
• Measures ambient temperature from -40°C to +125°C
• High accuracy of ±0.5°C at room temperature
• I2C digital interface for easy integration
• Medical-grade precision (depending on variant)
• Wide field of view options available

Technical Specifications

Applications

• Contactless fever screening and health monitoring
• Industrial temperature monitoring of moving parts
• Food safety temperature checking
• HVAC duct temperature measurement
• Automotive surface temperature sensing
• Smart home presence and comfort sensing

Important Notes

• Field of view affects measurement – sensor averages temperature in viewing cone
• Emissivity setting may need adjustment for shiny/reflective surfaces
• Steam, dust, or smoke between sensor and target affects accuracy
• Allow warm-up time for stable readings
• Medical applications require MLX90614ESF-DCI variant for highest accuracy