That’s normal.

The sound comes from automatic thermal calibration (shutter):

• Helps maintain temperature accuracy.
• Happens periodically during use.

Important:

• Cannot be fully disabled.
• Does not affect performance.

The RT100 detects temperature changes down to 0.1°C (sensitivity) with an accuracy of ±2°C / ±2%. It excels at finding hotspots and thermal anomalies but is not designed for lab-grade precision measurement.

Yes — with limitations.

• Good for locating overheating areas.
• Not ideal for ultra-fine component inspection without macro lens.

Recommended setup:

• Add macro lens for better precision

The RT100 is designed to help you quickly find invisible heat problems in real-world situations, such as:

• Home inspection → heat loss, insulation gaps, air leaks.
• Electrical systems → overheating wires, loose connections.
• Battery & solar setups → abnormal heat, overload issues.
• Automotive & mechanical → component overheating.

In short: If a problem creates heat, this camera helps you see it.

Yes. The RT100 is available in Android and iPhone (iOS) versions, each equipped with the corresponding interface. Please select the appropriate version when placing your order; cross-platform use is not supported.

Yes, the RT100 works well for daily, outdoor, and emergency use:

• Find lost pets: It detects heat from animals, so you can locate cats or dogs hiding in dark, cold, or covered areas, even at night.
• Outdoor safety: Use it for night hiking, camping, or spotting wildlife.
• Home safety: Check BBQ temperatures, find overheating outlets, or spot heat-related hazards around the house.

Important Note:

Foxwell RT100 is a general-purpose thermal imager, not a dedicated wildlife or pet tracking device. Detection can be affected by distance, thick foliage, obstacles, and environmental conditions.

This is usually caused by connection or permission issues, not a defective device.

Please check:

• Your phone supports OTG (USB On-The-Go).
• USB permissions are enabled for the app.
• The device is fully plugged in (remove thick phone cases if needed).

Quick fixes:

• Reconnect the device.
• Restart the app.
• Try without a phone case.

In many cases, yes.

Some phone cases (especially thick or rugged ones) can block the USB-C connection and prevent proper detection.

Recommended:

• Remove the case for direct connection.
• Or use the included USB-C extension cable for easier access.