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Professional Thermal Imaging

for Android Devices

Slide background

Professional Thermal Imaging

for Android Devices


Android™ Thermal Vision

Transform your Android™ smartphone into a powerful thermal camera


Superb Image Quality

384 x 288px resolution for day/night vision and thermography applications


Long Range Detection

Detect human targets at 500m (1600 ft.) and vehicle targets at 1500m (4900 ft.)


What is Therm-App™?

Therm-App™ transforms Android smartphones into powerful thermal cameras, featuring long-range night vision and high-resolution thermography.

This revolutionary concept extends human vision by turning smartphones into thermal cameras. It is great news for professionals world wide, whether they are night guards, law enforcement officers, construction workers, air-conditioning technicians, service & maintenance personnel, physicians, veterinarians, farmers or hunters. Now you can purchase a lightweight, modular, low power device that clips onto your smartphone. Plug in its USB cable, and your phone turns into a powerful camera that can display thermal images, record them, share them – and run a whole new family of exciting dedicated night vision and thermography applications.

Therm-App™ combines the power of a fully functional thermal camera with the mobility, processing power, display capabilities and advanced features provided by smartphones today, and in the future. Through our SDK, we let the crowd decide which Therm-App™ applications will be produced, changing our everyday life and making sure there’s always more to see!

Check Out Some of the Features

Now, invent your own way to use Therm-App™

The Therm-App™ Android Application

Therm-App™ mobile applications are what makes the Therm-App™ device such a versatile tool.

Check out some of the features our application offers users or download from Google Play

About Us

Background about_us (1)

Since 1983, Opgal has provided one of the broadest product lines of innovative thermal imaging and near-infrared illumination camera solutions. Decades of research and development have been invested in state-of-the art and unmatched image-processing capabilities. 


Thermal imaging, widely used in the battlefield, could be used for a wide variety of applications- from the construction site to the veterinarian’s office, from hunting grounds to peripheral security- everyone would benefit from the capability to view the world in infrared.  However, thermal imaging is complex and its current technology has not been cost-effective, sufficiently mobile, nor industrially designed for the professional and consumer markets and therefore not a viable option there. Now Opgal, specialists in thermal imaging and infrared technology, makes all this possible, giving everyone the ability to view the world in infrared.


We’re proud to introduce Therm-App™, a high quality, easy-to-use, developer friendly device that will allow thermal imaging to be more accessible than ever before. Now you can use it too. Safely. Quickly. Efficiently. And all from your mobile phone.


For a full list of Therm-App supported devices, Click Here


How can I get my own Therm-App?

Therm-App™ is available for online purchase here.

Interested in distributing/reselling Therm-App™? Send us a message.

Who can use Therm-App™?

Basically everyone owning a mobile device that runs Android 4.1 and up as well as supports USB-OTG  can use Therm-App™.

Our innovative, patent pending technology can be used by professionals in multiple use cases in security, safety, healthcare, veterinary, construction, maintenance, wildlife observation and many other applications.

Where can I get Therm-App™ applications for my device?

Just search Google Play for “Therm-App”  to get an updated list of available applications.

How can I contact you?

Simply email us at:

Where do I submit press inquiries?

Drop us a line at:

What if I want to purchase accessories for my Therm-App™ device?

We are currently hard at work producing a selection of accessories for your Therm-App™ device: cables, lenses, handles and more. We will offer them on our online shop when they are ready to ship.

How long can I work with my Therm-App™ Imaging Device?

Working time with your Therm-App™ device varies greatly depending on your phone and activity type. In any case, we recommend that you unplug your Therm-App™ Imaging Device when you are not using it.

Where can I find your End User License Agreement?

Our EULA is available inside the Therm-App™ package. It is also available here.


Which phones are compatible with Therm-App?

Therm-App™ was tested and found compatible with these phones. Still, Therm-App™ should be compatible with any phone that  runs Android 4.1 “Jelly Bean” or above and supports USB “host” mode (USB-OTG). Click here for the latest list of devices.

What are the full technical specifications of the Therm-App device?

General Information


384 x 288 pixels (>110k pixels)


LWIR 7.5-14um

Lens Options and FOV

6.8mm Lens (55 x 41⁰ )

19mm Lens (19 x 14⁰)

Frame Rate



 138 grams / 4.87 ounces  (with 19 mm lens)


55 x 65 x40 mm (2.16 x 2.55 x 1.57 in)

Operating Temperature

-10°C to +50°C  (-4°F to +122°F)

Power Supply

5V over USB cable

Power Consumption

 Less than 0.5W.



Device Attachment

Clip-on for smartphone (5.8-10cm span)

Mobile Platform Support

USB OTG (On The Go) compatible devices

Mobile OS Compatibility

Android 4.1 and up

Recording and Sharing

Therm-App™ Smartphone App

Imaging Modes


Color temperature mapping: 5°C – 90°C

Available colors: Rainbow, Iron, Grayscale

Enhanced Vision

High-resolution thermal imagery (grayscale night vision)

NETD <0.07 degrees C

What is USB-OTG?

OTG is an abbreviation for “On-The-Go”. It is a specification that allows devices such as smartphones to act as a host, allowing other USB peripheral devices like a USB disk-on-key, mouse, keyboard  or camera to be attached to them (this is why OTG capability is sometimes referred to as “host mode”).

Unlike conventional USB connectivity, in USB-OTG connections the host (in our case the Smartphone) will provide 5V power feed to the peripheral device (in our case the Therm-App™ device). It will also control and read the raw data from it.

The USB-OTG standard makes use of a special wiring trick inside the USB connector in order to signal the Smartphone that it should become a host. This is why Therm-App only works with  USB-OTG cables. For more info see: or

How do I install Therm-App™ on my phone?

  1. Before plugging in the Therm-App™ device, visit Google Play and download the free Therm-App Basic app.  
  2. After installing the app, attach the Therm-App™ device to the back of your mobile device by turning the sizing screw, and ensure that it is firmly attached. If this is your first installation of Therm-App™, make sure you have a solid internet connection active on your phone.
  3. Connect the USB-OTG cable to both Therm-App™ and your mobile device.
  4. Your Android operating system will ask for your permission to associate the USB device with the Therm-App™ application. Approve and continue.
  5. The Therm-App™ application will automatically start. 
  6. Review and accept the Terms and Conditions.
  7. At first use, the application will automatically download a calibration package to your phone. This is a one-time procedure. 

What if my Therm-App™ device isn’t working?

If this is your first time operating the device, you might want to check our installation guidelines.

If you have already used the Therm-App™ device, please try the following:

  • Disconnect both sides of the cable, then reconnect it .
  • Restart your phone, then try launching Therm-App™ again.
  • Uninstall Therm-App™, then reinstall Therm-App™ application.

Does Therm-App™ work on iOS, Windows Phone or Blackberry?

Currently we support Android OS 4.1 and above. But our dedicated development team is working on supporting these platforms as well. Stay tuned for updates.

What is the viewing range for Therm-App™?

Based on the Johnson’s criteria, equipped with the default 19mm lens, your Therm-App™ device can spot a moving human target  at up to 500 m (1640 ft.) and a moving vehicle target at up to 1500 m (4921 ft.).

Can I use any USB cable with my Therm-App™ device?

Actually no. Therm-App™ will only work with a USB-OTG (On The Go) cable that allows for both communication and power transfer.

Please note that low quality USB cables may affect the image quality received from your Therm-App™ device.

How do I know which Android version my phone is running?

On most Android phones, you will need to go to your “Setting->About my Phone” to find this information. If you cannot find it,  please contact your mobile phone provider for details.

Still Have Questions?

Here are several ways to contact us


Our dedicated support team will be happy to address your queries. Simply e-mail us at:

importantMore Info

In case you have further questions, or if you wish to learn more about Therm-App™, simply e-mail us at:

Become Part of  Therm-App™


At Therm-App™, we are  always seeking out new growth opportunities. If you are interested in a business partnership with us, please let us know.

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Therm-App™ is more than a thermal camera, it is a game changing concept. If you have an idea for a new application for the Therm-App™ Thermal imaging Device, or if you are a mobile app developer that wishes to join our developer community, we would be happy to hear from you.

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Existing Opgal customer?

Therm-App is available to you. Please contact your sales person for details and quotes.