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Thermal Master P4 – A versatile all-in-one thermal camera for electrical engineers, HVAC technicians, and building inspectors.
- AI Dual-Lens, IR Eraser for fast switching between thermal and original views.
- 4-Vision Fault Detection: Infrared, Visible, IR-Fuse™, MIX modes
- 512×384 Super IR (256×192 VOx sensor) for clear imaging
- ≤35 mK, 25 Hz refresh rate, –20°C–600°C range (±2°C accuracy)
- 15× digital zoom and 12 color palettes for flexible thermal viewing.
- Only the Android version supports deeper inspection.
30-Day Money backShipping & Warranty
Shipping & Warranty
We offer reliable worldwide shipping through our regional warehouse network.
Regional Warehouses
Orders ship from the nearest available warehouse (US, UK, EU, or CN) depending on stock availability.
Fast Delivery
- UK: 3–7 business days
- US / EU: 7–10 business days
- Other Regions: 10–20 business days
Processing Time: 1–3 business days.
Tracking details will be emailed once dispatched.
Transparent Pricing
All listed prices include applicable import duties and taxes for supported regions, with no hidden fees upon delivery (local regulations may apply in special cases).
2-Year Limited Warranty
Return requests are accepted within 30 days of delivery, provided the product is returned in its original condition and packaging.
30-Day Risk-Free Returns
Not satisfied? You may request a return within 30 days of delivery if the item is in its original condition. Our team is here to help.

P4
World's 1st AI Dual-Lens Thermal Camera
















Other Features

3D Heat Visualization
Turn flat thermal data into vivid 3D heat maps, accurately locating hotspots to streamline diagnostics and speed up repairs.

Free Pro Data Analysis
Quickly generate professional reports with 2D edit, 3D edit, report generation, and PC compatibility, making it ideal for in-depth diagnostics and analysis.

15 Professional Modes
15 measurement modes, including 3 Point, 3 Line, 3 Rect, 3 Circle, and automatic center/high/low temp point tracking, delivering a 300% power increase for versatile thermal inspection.

Professional Image Correction
Quickly identify small defects in complex scenarios with adjustable brightness, contrast, scale, mirror, and rotate functions, ensuring clear and accurate thermal imaging.




BUILT FOR MOBILITY




Unboxing video
P4 App Introduction
Product specification
P4
Vox 256x192 @12μm
512x384
-4℉~1112℉(-20℃~600℃)
<35mk
Fixed 15 cm – infinity
Electrical panels/Mechanical systems/HVAC problems/Finding water damage
Android 6.0 and above
15×
25Hz
Thermal Master® High-Sensitivity Core
Ultra-Clear algorithm
Supported
A setting that highlights a specific range of temperatures within the thermal image, making them stand out with a distinct color.
0.58W
56.0°(H)x42.2°(V)
53mm×29mm×11mm
P4 thermal camera, portable case, 50cm extension cabel, user manual
Product Comparison


256*192
256*192
512*384
512*384
Dual Lens
Macro Adjustable Lens
Home Inspection
Electrical Inspection(PCBs)
Android 6.0 and above
Dual System (iOS & Android)
Thermal Master P4 FAQs
What is the Thermal Master P4?
What is the Thermal Master P4?
The Thermal Master P4 is a compact smartphone thermal imager that can detect unusual heat sources that are normally invisible to the naked eye. It connects directly to your phone, turning it into a powerful thermal imaging detection tool.
Equipped with a 256×192 resolution infrared sensor, this imager uses X³IR technology to boost the resolution to 512×384, generating clear thermal images with rich detail. With a 25Hz frame rate, ≤50mK thermal sensitivity, and 15x digital zoom, the P4 helps you quickly detect unusual heat sources in electrical systems, buildings, and machinery.
What can the Thermal Master P4 thermal camera be used for?
What can the Thermal Master P4 thermal camera be used for?
The Thermal Master P4 thermal imager is designed for a variety of inspection tasks and is ideal for uncovering hidden problems through temperature differences. It can help identify issues such as overheating electrical components, concealed leaks, building leaks, or mechanical component failures.
Common applications include electrical inspection, HVAC diagnostics, building insulation checks, automotive troubleshooting, and electronics repair. Its high thermal sensitivity (≤50mK) and enhanced 512×384 resolution also enables it to detect subtle temperature differences that traditional inspection methods might miss.
Who is the Thermal Master P4 designed for?
Who is the Thermal Master P4 designed for?
The Thermal Master P4 is designed for both professionals and advanced DIY users who need reliable thermal diagnostics.It is commonly used by:
- Electricians
- HVAC technicians
- Home inspectors
- Automotive mechanics
- Electronics engineers
- DIY homeowners
Its lightweight 26.5 g design and smartphone-powered operation make it easy to carry and use in the field.
What is the thermal resolution of the Thermal Master P4?
What is the thermal resolution of the Thermal Master P4?
The Thermal Master P4 uses a 256×192 resolution infrared sensor, which can be boosted to 512×384 using X³IR super-resolution technology. This higher resolution allows the camera to display more detailed thermal images and clearer temperature distribution.
Combined with a 12 µm pixel size and a NETD thermal sensitivity of ≤50 mK, the P4 can detect minute temperature differences on object surfaces. This allows you to identify hotspots, insulation gaps, or overheated components more clearly and accurately.
What temperature range does the Thermal Master P4 support?
What temperature range does the Thermal Master P4 support?
The Thermal Master P4 supports a wide temperature measurement range from –20°C to 600°C (–4°F to 1112°F).This makes it suitable for many inspection tasks, including:
- Home insulation inspection
- Electrical panel diagnostics
- Mechanical equipment monitoring
- Automotive engine troubleshooting
The camera also offers ±2°C temperature accuracy, providing reliable measurements for both professional and everyday inspection work.
Is the Thermal Master P4 compatible with iPhone or Android?
Is the Thermal Master P4 compatible with iPhone or Android?
Yes. The Thermal Master P4 works with iPhones and Android smartphones using the Thermal Master mobile app. Once connected, you can instantly view real-time thermal imaging images on your phone screen.
The app can also take photos and videos, switch between 12 color modes, and perform point, line, or surface temperature measurements. It can also be powered by your smartphone, eliminating the need for a separate battery, making it ideal for field testing.
How accurate is the temperature measurement of Thermal Master P4?
How accurate is the temperature measurement of Thermal Master P4?
The Thermal Master P4 offers a temperature accuracy of ±2°C, sufficient for most professional inspection and maintenance needs. Accurate temperature readings are crucial when diagnosing overheated electrical components or assessing building insulation performance.
To enhance measurement reliability, the P4 also supports emissivity adjustment, distance correction, and ambient temperature compensation. These correction functions ensure more accurate readings under varying material and environmental conditions.
What warranty is included with the Thermal Master P4?
What warranty is included with the Thermal Master P4?
The Thermal Master P4 comes with a 2-year warranty, protecting against manufacturing defects under normal use. This ensures that users can rely on the device for long-term inspections and professional applications.
In addition to warranty coverage, Thermal Master also offers technical support and software updates. These updates help improve app performance and ensure users can continue to benefit from new features and optimizations.
Can the Thermal Master P4 thermal camera see through walls?
Can the Thermal Master P4 thermal camera see through walls?
No. The Thermal Master P4 thermal camera cannot see directly through walls or solid objects. Thermal cameras detect infrared heat emitted from surfaces rather than penetrating materials.
However, the P4 camera can still reveal hidden issues behind walls by detecting unusual surface temperature patterns. For example, insulation gaps, moisture buildup, or air leaks often create temperature differences that they can visualize.
Can the Thermal Master P4 thermal camera detect water leaks?
Can the Thermal Master P4 thermal camera detect water leaks?
Yes. The Thermal Master P4 thermal camera can help locate potential water leaks by detecting temperature differences caused by moisture.When water spreads inside walls, ceilings, or floors, it often changes the temperature of surrounding materials.
With its high thermal sensitivity (≤50mK) and enhanced thermal resolution, the P4 can highlight these patterns and help inspectors narrow down the source of the leak.
Can the Thermal Master P4 thermal camera detect electrical problems?
Can the Thermal Master P4 thermal camera detect electrical problems?
Yes. The Thermal Master P4 thermal camera is very effective for identifying electrical issues. Components such as circuit breakers, wiring connections, electrical panels, and motors often produce abnormal heat before failure occurs.
By scanning these systems with the P4, technicians can quickly locate hotspots and potential faults. Detecting overheating components early can help prevent equipment damage, reduce downtime, and improve overall safety.
Can the Thermal Master P4 thermal camera detect animals?
Can the Thermal Master P4 thermal camera detect animals?
Yes. The Thermal Master P4 thermal camera can detect animals by capturing the infrared heat emitted from their bodies. Because thermal imaging works independently of visible light, animals can still be detected in dark or low-visibility environments.
This makes the P4 useful for wildlife observation, locating pets at night, or detecting animals hidden in vegetation. The camera’s 15× digital zoom also helps users observe heat signatures from a greater distance.



