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Thermal Master P1 Thermal Camera vs Thermal Master P3 Thermal Camera

Both are phone thermal cameras from Thermal Master, but they target different work. The P3 has the sharper sensor (native 256×192, 512×384 enhanced, NETD under 35 mK) and a manual-focus macro lens, so it resolves small PCB faults and hot spots the P1 cannot. The P1 is smaller, lighter and wider-angle, which suits quick home checks like studs, leaks and insulation. Owners rate both highly; the P3 scores slightly higher, and reviewers call it better than the FLIR One Pro. Buy the P3 for electronics and lab work, the P1 for general home inspection.

  • Choose the Thermal Master P1 if you want a tiny, light plug-in camera for home checks like finding studs, plumbing leaks and insulation gaps, and you value a wider field of view over fine detail.
  • Choose the Thermal Master P3 if you diagnose circuit boards or electrical faults and need a manual-focus macro lens and higher resolution to spot small hot spots and leakage.

Prices

  • Thermal Master P1 Thermal Camera: $116.00 at eBay (last seen Nov 13)
  • Thermal Master P3 Thermal Camera: $269.10 at Thermal Master (last seen Nov 13)
  • Difference: the Thermal Master P1 Thermal Camera is $153.10 cheaper than the Thermal Master P3 Thermal Camera at the latest prices (Nov 13)
Thermal Master
Thermal Master P1 Home Inspection Thermal Camera

Thermal Master P1 Thermal Camera

Thermal Master P1 Home Inspection Thermal Camera

4.7(301 ratings)
$116.00at eBayChecked Nov 13
See all prices and details
Visit eBay

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Pros
  • Very small and light, easy to carry and plug in
  • Wide 52° × 39° view covers a whole wall or room section
  • Works with iPhone, Android over Type-C and PC
  • Owners report it finds studs where stud finders fail
Cons
  • Fixed focus and lower resolution blur small details
  • Some users hit app problems on lower-end phones
  • Narrower temperature detail than the P3 for PCB work
Thermal Master
Thermal Master P3 PCB Thermal Camera

Thermal Master P3 Thermal Camera

Thermal Master P3 PCB Thermal Camera

4.8(186 ratings)
$269.10at Thermal MasterChecked Nov 13
See all prices and details
Visit Thermal Master
Pros
  • Manual-focus macro lens resolves tiny PCB faults
  • Higher native and enhanced resolution with better sensitivity
  • Detects PCB leakage as low as 1 mA
  • Python API lets you log temperatures to a computer
  • Reviewers rate it above the FLIR One Pro
Cons
  • Thicker body and tighter field of view suit close work, not wide scans
  • Manual focus adds a step for quick checks
  • One owner questions long-term durability

What separates them

Thermal Master P1 Thermal CameraThermal Master P3 Thermal Camera
Native IR resolution160 × 120 VOx detector256 × 192 VOx detector
Enhanced resolution320 × 240512 × 384
Thermal sensitivity≤40 mK<35 mK
FocusFixed focusManual focus macro lens, 8 mm close range
Field of view52° × 39°, wider scene coverage40° × 30.2°, tighter and more detailed
Size and weight9 mm thick, 17.6 g17.2 mm thick, heavier
Temperature range and accuracy–4°F to 1112°F, ±2°C–4°F to 1122°F, ±2°C or ±2%
SoftwareSome owners report app issues on lower-end phonesPython API for reading temperatures on a PC

Price history

  • Thermal Master P1 Thermal Camera: lowest $116.00 on Nov 13 at eBay.
  • Thermal Master P3 Thermal Camera: lowest $269.10 on Nov 13 at Thermal Master.

Prices at every store

Thermal Master P1 Thermal Camera

  • eBayNew

    In stock

    $116.00Free shippingChecked Nov 13
    Visit eBay
  • Thermal MasterNew

    In stockReturn policy

    $116.10Checked Nov 13
    Visit Thermal Master
  • WalmartNew

    In stockSold by Pete OrganicsReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $129.00Checked Nov 9
    Visit Walmart
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $129.00Free shippingChecked Nov 13
    Visit Amazon

Also available at

  • Thermal MasterCheck price at Thermal Master

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All 5 stores and price history →

Thermal Master P3 Thermal Camera

  • AliExpressNew

    In stockShips from abroad · duties may apply

    $286.60Free shippingChecked Nov 13
    Visit AliExpress
  • TruTech ToolsNew

    In stock

    $279.00+ $11.70 shippingChecked Nov 13
    Visit TruTech Tools
  • Oasis ScientificNew

    In stock

    $299.00Free shippingChecked Nov 13
    Visit Oasis Scientific
  • Thermal MasterNew

    Availability unknown

    $269.10Free shippingChecked Nov 13
    Visit Thermal Master

Also available at

  • Thermal MasterCheck price at Thermal Master
All 9 stores and price history →

Specs compared

SpecThermal Master P1 Thermal CameraThermal Master P3 Thermal Camera
Temperature range–4°F to 1112°F (–20°C to 600°C)-4℉~1122℉（-20℃~600℃）
Temperature accuracy±2°C±2℃ or ±2%
Thermal sensitivity≤40 mKNETD <35mK @25℃
Frame rate25 Hz25Hz
Power consumption0.32 W0.32W
Dimensions59 x 31 x 9 mm59*27*17.2 mm
Field of view52° x 39°40°x30.2°
Focal length4.3 mm4.3mm
colorGray—
sizeP1—
IR resolution160 × 120—
Enhanced resolution320 × 240—
Show all 18 specsShow fewer specs
SpecThermal Master P1 Thermal CameraThermal Master P3 Thermal Camera
CompatibilityAndroid (Type-C), iOS, and PC—
Weight17.6 g—
Thermal Resolution—512 × 384 X³IR
IR Sensor—VOx 256 × 192 @12μm
Focusing Mode—Macro & Manual Focus Lens
Digital Zoom—15×

What reviewers say

Thermal Master P1 Thermal Camera

  • 4.7 / 5301 ratings

Buyers rate it highly and say it works as advertised, often better than expected. They find it clear for spotting temperature differences outdoors at night and useful for studs, leaks and home projects. A few hit software trouble on cheaper phones and one reported inconsistent readings.

What people mention
  • Image clarityPraisedBuyers say temperature differences show clearly, including outdoors at night.
  • Ease of usePraisedOwners describe it as simple to set up and use for home projects.
  • Stud findingPraisedReviewers say it locates studs in older houses where stud finders fail.
  • Leak detectionPraisedBuyers find it useful for tracing plumbing leaks.

Thermal Master P3 Thermal Camera

  • 4.8 / 5186 ratings

Rated 4.8 out of 5 from 186 ratings, buyers call it better than expected and compare it favorably to the FLIR One Pro. Several mention the Python API for reading temperatures on a computer, and one notes it is too early to judge long-term durability.

What people mention
  • Image qualityPraisedBuyers say the thermal detail beats the FLIR One Pro and call it lab-grade precision in your pocket.
  • PCB sensitivityPraisedOwners report it spots tiny board faults and low-current leakage quickly.
  • Software/APIPraisedBuyers like the hackable Python API that streams temperatures to a computer.
  • DurabilityMixed

Questions and answers

Which is better for PCB and electronics repair?
The P3. Its 256 × 192 native sensor, 512 × 384 enhanced output and manual-focus macro lens resolve small hot spots and leakage down to 1 mA. The P1's fixed focus and 160 × 120 detector are too coarse for board-level work.
Which is better for home inspection?
The P1. Its wider 52° × 39° view and lighter body make it quicker for walls, ceilings, plumbing and insulation. The P3 works too, but its tighter view and manual focus slow down broad scans.
Is the P3 worth stepping up to?
If you do circuit-level or electrical diagnostics, yes. The higher resolution, better sensitivity and macro focus are real gains. For casual home checks, the P1 covers the basics.
Which has better thermal sensitivity?
The P3, at under 35 mK versus 40 mK or better on the P1. That means it picks up smaller temperature differences, which matters for faint faults.
Do both work with iPhone and Android?
Yes. Both connect to iOS, Android and PC. The P3 ships with a Type-C to Lightning adapter, and its Python API lets you read temperatures on a computer.
Which lasts longer?
Both use the same 0.32 W power draw and similar build. The P3 has more moving parts in its focus lens, so treat it with care. Long-term data is thin for both.

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More comparisons

  • Thermal Master P1 Home Inspection Thermal Camera vs FLIR TG165-X Thermal Camera
  • FLIR TG165-X Thermal Camera vs Thermal Master P3 PCB Thermal Camera

Buying guides that pick them

  • Best infrared thermal imaging cameras for home and DIY use
One reviewer says it works but only time will tell if it holds up.