Compact, Precise, and Mobile Infrared Thermometer The Testo 805i Bluetooth Infrared Thermometer Smart Probe transforms your smartphone or tablet into a powerful IR thermometer for measuring wall temperatures, fuses, and component temperatures in air conditioning systems. With its innovative design and easy-to-use app integration, it offers unmatched precision and convenience for professionals. Key Features Wireless Connectivity: Easily connects to your smartphone or tablet for seamless temperature measurement. Precise Laser Marking: The measuring point is clearly marked with an eight-dot laser circle for precise targeting. Non-Contact Measurement: Safely measure surface temperature