CDQL Thermal Imager Infrared Camera

Published on Aug. 25, 2023, 5:31 p.m.

Thermal imaging technology captures the heat emitted by objects, converting it into a visual image that depicts temperature variations. This fascinating technology has a wide range of applications, from medical diagnostics to building inspections, offering a non-invasive way to gauge temperature and detect issues not visible to the naked eye. In this review, we delve into the CDQL Thermal Imager Infrared Camera, a tool that embodies this innovative technology, providing users with the ability to see and measure a spectrum of temperatures in their surroundings.

The CDQL Thermal Imager Infrared Camera is a handheld thermal imaging device that allows users to see and measure temperatures between -40°C to 300°C. With a compact design and intuitive interface, this infrared camera is a versatile tool for professionals and hobbyists alike. In this review, we will take a close look at the features, performance, and overall value of this thermal imager.

 CDQL Thermal Imager Infrared Camera


  • Brand: CDQL
  • Model: Thermal Imager Infrared Camera
  • Type: Handheld thermal imaging camera
  • Key Features:
  • Temperature range -40°C to 300°C
  • 2-inch display screen
  • Stores up to 100 images
  • Rechargeable battery
  • Lightweight and portable

Understanding the Technology Behind Thermal Imaging

Thermal imagers, like the CDQL Thermal Imager Infrared Camera, detect infrared radiation emitted from objects and convert this data into an image. The camera’s sensor, sensitive to thermal energy, interprets these infrared emissions, creating a thermal map that represents different temperatures through varying colors. This process unveils a world invisible to the naked eye, revealing the heat profile of surroundings and enabling precise temperature measurements across a range of applications.

Design and Build Quality

The CDQL Thermal Imager has a lightweight resin and circuit board construction. It measures just 3.9 x 3.9 x 2 inches and weighs only 4.15 ounces, making it highly portable. The front of the device features a 2-inch LCD display as well as the infrared camera lens and sensor. There are just two buttons on the device - the power button and image capture button. The rear features a Micro USB charging port. Overall, the camera feels well-constructed albeit with a plastic body.

 CDQL Thermal Imager Infrared Camera

Features and Performance

This infrared camera can measure temperatures ranging from -40°C up to 300°C with an accuracy of ±2°C. It has a horizontal field of view of 55° and vertical field of view of 35°. The 8Hz refresh rate provides real-time thermal imaging and temperature tracking.

The built-in 2-inch LCD screen shows the thermal image as well as tracks the max, min, and center point temperatures. Images can be captured and stored on the internal memory that can hold up to 100 images.

Connecting the camera directly to a computer allows you to download the stored photos for analysis. Unfortunately, the images are fairly low resolution at just 32 x 24 pixels.

In-Depth Analysis of Technical Specifications

  • Resolution: The resolution of a thermal imager is critical for image clarity. With a 32 x 24 infrared display, the CDQL camera provides detailed thermal images, crucial for identifying temperature variations accurately.
  • Sensitivity: Sensitivity is key to detecting subtle temperature differences. The CDQL camera’s ability to accurately measure temperature changes within ±2°C showcases its high sensitivity, beneficial for various applications.
  • Measuring Range: The camera’s broad measuring range of -40°C to 300°C makes it versatile for different environments, from freezing conditions to high-heat industrial settings.

Enhanced Imaging and User Experience

  • Image Enhancement Technology: Discuss the image processing techniques utilized by the CDQL Thermal Imager to improve image quality, aiding in better temperature visualization.
  • Ease of Use: Analyze the user interface and the convenience of operation, highlighting the simplicity of capturing and storing thermal images with a dedicated button press.
  • Connectivity and Compatibility: Explore the device’s capabilities to interface with other systems or devices, emphasizing the ease of transferring images for further analysis.

Ease of Use

Operation is fairly straightforward. Simply power on the device and point it at the target. The LCD screen provides a live thermal view along with temperature data. Press the dedicated button to capture and save images.

While the basic functions are easy to use, the lack of settings adjustability is a downside. There is no way to adjust the temperature span or color palette and no software is included for further analysis.

Intended Applications

This thermal imager is well suited for basic, non-contact temperature measurements in various industries and around the home. Example applications include locating hot/cold spots in HVAC systems, detecting leaks or insulation issues in buildings, monitoring equipment and machinery, and basic electronics repair. It’s also handy for detecting heat loss around doors and windows.

However, the low resolution imagery and lack of analysis features limit advanced scientific and industrial use.

Pros and Cons


  • Compact and lightweight design
  • Clear 2-inch LCD display
  • Fast 8Hz refresh rate
  • Accurate temperature range up to 300°C
  • Stores images for later analysis
  • Reasonable price point


  • Plastic construction feels a bit cheap
  • Very low resolution thermal images
  • No software or reporting features
  • Lack of settings adjustments
  • Short battery life


The CDQL Thermal Imager Infrared Camera retails for approximately $120. This positions it as an affordable entry-level thermal imager. The portability, ease of use, and accurate temperature detection provide good functionality and value for the price point. More expensive models offer higher resolution images and more powerful analysis tools.

 CDQL Thermal Imager Infrared Camera

Conclusion and Future Perspectives

The CDQL Thermal Imager Infrared Camera stands out for its compact design, user-friendly interface, and versatile temperature measurement capabilities. As thermal imaging technology continues to evolve, we can anticipate more advanced features, such as higher resolution and enhanced connectivity, broadening the scope of applications. This device is a testament to the ongoing innovation in thermal imaging, offering valuable insights across various fields, from home inspections to industrial diagnostics.

 CDQL Thermal Imager Infrared Camera


  • Temperature Range: -40°C to 300°C
  • Accuracy: ±2°C
  • Resolution: 32 x 24 pixels
  • Refresh Rate: 8Hz
  • Field of View: 55° x 35°
  • Display: 2-inch LCD screen
  • Image Storage: Stores up to 100 images
  • Connectivity: Micro USB port
  • Battery: Rechargeable 600mAh Li-ion
  • Dimensions: 3.9 x 3.9 x 2 inches
  • Weight: 4.15 ounces

Included in Box:

  • CDQL Thermal Imager Camera
  • USB Charging Cable
  • Lens Cleaning Cloth