1. Introduction
The FLIR ONE Pro is a thermal imaging camera designed for use with iOS smartphones equipped with a Lightning port (iPhone 14 and older models). This device transforms your smartphone into a powerful tool for detecting thermal energy, allowing for the identification of heat patterns and temperature variations not visible to the naked eye. It is suitable for various applications, including home inspections, electrical panel diagnostics, HVAC system analysis, and moisture detection.

Image 1.1: The FLIR ONE Pro thermal imaging camera, featuring a Lightning connector for iOS devices.
2. Package Contents
Verify that all items are present in the package:
- FLIR ONE Pro Thermal Imaging Camera
- Protective Case
- USB Charging Cable
3. Setup
3.1 Charging the Device
Before initial use, fully charge the FLIR ONE Pro. Connect the supplied USB charging cable to the device's USB port and to a standard USB power adapter (not included). The charging indicator light will provide status updates.
3.2 Installing the FLIR ONE App
The FLIR ONE Pro requires the FLIR ONE mobile application to function. Download the official FLIR ONE app from the Apple App Store on your iOS device.
3.3 Attaching to Your Smartphone
Ensure your smartphone's Lightning port is clean and free of debris. Carefully align the FLIR ONE Pro's adjustable Lightning connector with your phone's port and firmly insert it. The connector is designed to extend up to 4mm to accommodate many protective cases.

Image 3.1: Proper method for attaching the FLIR ONE Pro to an iPhone.
4. Operation
4.1 Powering On and Initial Use
Once attached, open the FLIR ONE app. The device will automatically power on and begin streaming thermal and visual imagery to your phone's screen. Allow a few moments for the camera to calibrate.

Image 4.1: The FLIR ONE Pro in operation, displaying a thermal view of an electrical panel on a smartphone.
4.2 Understanding MSX Technology
The FLIR ONE Pro utilizes Multi-Spectral Dynamic Imaging (MSX) technology. This feature overlays key details from the visual camera onto the thermal image in real-time, enhancing clarity and making it easier to identify objects and their thermal signatures. The thermal resolution is 160x120 pixels, which is upscaled to 320x240 with Vivid IR technology, while the visual camera provides 640x480 resolution for MSX enhancement.

Image 4.2: A visual comparison demonstrating the enhanced detail provided by MSX technology in thermal imaging.
4.3 App Features and Settings
The FLIR ONE app provides various functions:
- Image and Video Capture: Capture thermal images and videos directly to your phone's gallery.
- Temperature Measurement: Display temperature readings for specific points or areas within the thermal image.
- Color Palettes: Select from various color palettes to visualize temperature differences effectively.
- Emissivity Adjustment: Adjust emissivity settings for different materials to improve temperature measurement accuracy.
- Thermal Inspection Guides: Access step-by-step guides within the app to assist with common inspection tasks, such as identifying air leaks or moisture buildup.
- FLIR Ignite Cloud: Upload, edit, organize, and share images and reports via FLIR Ignite cloud storage.

Image 4.3: The FLIR ONE App interface, showing various settings and the live thermal view.

Image 4.4: Examples of the FLIR ONE App's integrated thermal inspection guides.

Image 4.5: FLIR Ignite cloud storage and reporting software interface.
5. Maintenance
5.1 Cleaning
To clean the FLIR ONE Pro, use a soft, damp cloth. Do not use abrasive cleaners or solvents. Ensure the lenses are clean for optimal image quality. Avoid submerging the device in water.
5.2 Storage
Store the FLIR ONE Pro in its protective case when not in use. Keep it in a cool, dry place away from direct sunlight and extreme temperatures. For long-term storage, ensure the battery is partially charged (around 50%) to maintain battery health.
6. Troubleshooting
If you encounter issues with your FLIR ONE Pro, consider the following:
- Device Not Connecting: Ensure the FLIR ONE Pro is fully charged and securely connected to your smartphone's Lightning port. Restart the FLIR ONE app or your smartphone.
- Poor Image Quality: Clean the thermal and visual camera lenses with a soft cloth. Ensure proper emissivity settings are selected for the target material.
- Inaccurate Temperature Readings: Verify emissivity settings. Ensure the device is within its specified operating temperature range (15°C – 35°C) and the scene is within 5°C – 120°C for optimal accuracy.
- App Crashing: Ensure the FLIR ONE app is updated to the latest version. Check your smartphone's operating system for available updates.
7. Specifications
| Feature | Specification |
|---|---|
| Thermal Resolution | 160x120 (Native IR), 320x240 (Super Resolution with Vivid IR) |
| Visual Resolution | 640x480 |
| Object Temperature Range | -20°C to 400°C (-4°F to 752°F) |
| Accuracy | ±3°C or ±5% (within 15°C – 35°C ambient, 5°C – 120°C scene) |
| Frame Rate | 9Hz |
| Connectivity | Lightning Connector (adjustable up to 4mm) |
| Battery Type | 1 Lithium Polymer battery (internal) |
| Battery Life | Approximately 1 hour of continuous use |
| Drop Test Rating | 1.5 meters (5.9 feet) |
| Product Dimensions | 2.68 x 0.51 x 1.77 inches (68 x 13 x 45 mm) |
| Item Weight | 1.27 ounces (36 grams) |
| Macro Focus Range | 15 - Infinity Centimeters |
| Video Capture Resolution | 1080p |
8. Safety Information
This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm (Proposition 65 warning). Please handle with care and refer to the manufacturer's safety data sheets if available.
Thermal imaging products with a frame rate of 9Hz or less are controlled by the U.S. Department of Commerce under Export Control Classification Number (ECCN) 6A993.a. These products may not be exported, re-exported, or transferred to a 'Military End-User' in any country except the U.S. or Canada, unless approved under a U.S. export or re-export license. Additionally, these products are not to be used in the design, development, production, or use of nuclear, chemical, or biological weapons or missiles.
9. Warranty and Support
For warranty information and technical support, please refer to the official FLIR website or contact FLIR customer service directly. Keep your proof of purchase for warranty claims.





