75:1 Optics • -50 °C to +1850 °C • USB & Data Logging

Professional Infrared Thermometer with Extended Range and Built-In Data Memory

The CA 1866 Infrared Thermometer is a high-end industrial tool from Chauvin Arnoux, designed for demanding applications requiring long-distance, non-contact temperature measurements. With an optical resolution of 75:1 and a wide range of -50 °C to +1850 °C, it delivers exceptional precision—even on small or distant targets.

Equipped with dual laser sighting, adjustable emissivity, and USB connectivity, the CA 1866 also includes internal memory for up to 100 readings, ideal for audits, diagnostics, and professional maintenance routines. Its intuitive backlit display with MAX/MIN/AVG/DIF functions makes it a complete temperature analysis tool in any setting.

Key Features

• Ultra-High Optical Ratio: 75:1 targeting optics for accurate long-range temperature readings
• Extended Range: -50 °C to +1850 °C, perfect for industrial furnaces, HVAC, and process monitoring
• Dual Laser Targeting: Aligns precisely with measurement area for pinpoint accuracy
• Adjustable Emissivity: Customisable from 0.1 to 1.0 for all surface types
• Internal Memory: Stores up to 100 readings for recall and review
• USB Output: Allows data transfer and PC connection for further analysis
• Alarm Function: High/low threshold with visual and audible alerts
• Comprehensive Functions: Max, Min, Average, Differential, Hold
• Backlit LCD Display: Clear and easy to read, even in low light

Technical Specifications

Downloads & Resources