Ayayu Handheld Thermal Imager - Portable and Accurate Infrared Camera

Published on Aug. 2, 2023, 1:36 p.m.

Thermal imaging technology finds extensive applications across various domains, ranging from industrial production to medical diagnostics, covering almost every aspect of life. In the industrial sector, thermal imaging technology is employed to detect faults and anomalies in equipment operation, aiding in the prevention of machine damage and production downtime. In the medical field, thermal imaging technology is utilized for diagnosing and treating numerous ailments, including breast cancer and skin diseases. Moreover, thermal imaging technology is widely used in the construction and security sectors for detecting thermal heat loss and safety hazards in buildings. Hence, understanding and mastering thermal imaging technology are crucial for enhancing work efficiency and quality of life.

The Ayayu Handheld Thermal Imager is a compact and lightweight infrared camera designed for temperature measurement and thermal imaging. With a detection range from -40°C to 300°C, 240 x 320 pixel display, and ±2°C accuracy, this affordable thermal imager provides versatile functionality for DIY, industrial, and security applications.

Ayayu Handheld Thermal Imager


  • Brand: Ayayu
  • Model Name: Handheld Thermal Imager
  • Product Dimensions: 4.09 x 4.02 x 2.01 inches
  • Weight: 3.84 ounces
  • Temperature Range: -40°C to 300°C
  • Image Resolution: 240 x 320 pixels
  • Accuracy: ±2°C
  • Refresh Rate: 8Hz
  • Display: 2.0 inch LCD screen
  • Connectivity: USB data transfer
  • Power: Built-in rechargeable 600mAh battery
  • Applications: Electrical, mechanical, industrial, security

Key Features

  • Portable and lightweight design for easy carrying
  • Decent 240 x 320 thermal image resolution
  • Wide -40°C to 300°C temperature measurement range
  • ±2°C accuracy for reliable readings
  • 8Hz refresh rate for real-time thermal scanning
  • 2.0 inch digital LCD display with on-screen temp tracking
  • Durable epoxy resin shell for protection
  • USB connectivity to transfer stored images/videos
  • Rechargeable 600mAh battery for 3+ hours of use
  • Can store up to 100 images internally

Market Analysis

The thermal imaging technology market is experiencing rapid growth, primarily driven by demand from the industrial, medical, and security sectors. It is expected that with advancements in technology and reductions in costs, thermal imaging technology will become more widespread and applied in a broader range of fields. Additionally, with increasing concerns for safety and efficiency, thermal imaging technology is poised for new growth opportunities in the consumer market.

Design and Build Quality

The Ayayu thermal imager has a durable epoxy resin shell that protects the internal components. The lightweight plastic body with handgrip makes it easy to carry and aim the camera. The 2 inch LCD screen provides a clear live view of thermal images. Overall, the device has a solid pocket-sized design suitable for field use.

Image Quality and Performance

For its low price point, the Ayayu thermal imager provides decent image quality with 240 x 320 pixels IR resolution. The temperature measurement range of -40°C to 300°C allows wide inspection capability. The ±2°C accuracy is reliable for most DIY and industrial applications. The 8Hz refresh rate enables smooth real-time scanning to quickly identify hot or cold spots.

Functional Features

  • Image Enhancement Technology: Thermal imagers are typically equipped with image enhancement technologies such as digital filtering and automatic correction to enhance image quality and accuracy.
  • User-Friendliness: Thermal imagers are designed with simplicity and ease of use in mind, catering to a wide range of users, from professionals to general consumers.
  • Connectivity and Compatibility: Many thermal imagers support connectivity with smartphones or tablets, enabling real-time monitoring and data sharing via dedicated applications.

Ayayu Handheld Thermal Imager

Ease of Use

The compact handheld design makes this thermal camera very easy to operate. Simply power on, aim at target, and view images on the LCD display. The on-screen tracking of max/min/center temps is useful. Press shutter button to capture images and videos which can later be transferred via USB. The intuitive operation makes this imager suitable even for beginners.

Application Scenarios

The Ayayu Thermal Imager is ideal for identifying electrical faults, locating plumbing or HVAC issues, detecting energy waste, performing security checks, and other diagnostic applications. It’s portable size also makes it practical for outdoor uses like finding lost pets at night or identifying critters and pests.

Suitable Applications

  • Identifying electrical faults
  • Locating plumbing, HVAC, or insulation issues
  • Detecting energy waste/inefficiencies
  • Performing security checks/intrusion detection
  • Finding lost pets/animals at night
  • Identifying pests and critters
  • And much more

Customer Feedback

This thermal imager has received very limited customer feedback so far. The only review on Amazon gave it 1 out of 5 stars, stating the image quality is low resolution and worse than expected. More customer reviews over time will provide better insight into the real-world performance and reliability.


  • Very affordable price only $75
  • Compact and lightweight handheld design
  • Sufficient image quality for beginners
  • Wide -40°C to 300°C temperature range
  • Easy to operate with intuitive controls


  • Image resolution only 240 x 320 pixels
  • Accuracy of just ±2°C may be insufficient for some
  • Lack of customer reviews to confirm reliability


Priced at just $75, the Ayayu Handheld Thermal Imager provides great value for a basic infrared inspection camera. While image quality and accuracy may not match premium models costing 5-10x higher, this thermal imager delivers good functionality for the price. It’s a budget-friendly option suitable for DIYers and hobbyists.


For its affordable price and compact size, the Ayayu Handheld Thermal Imager is a great entry-level infrared camera for basic inspections and diagnostics. The decent image quality, wide temperature range, and easy operation make this a versatile and portable thermography tool for home, industrial, and security uses. It’s a good budget pick for those new to thermal imaging.

Future Outlook

With the continuous advancement of science and technology, thermal imaging technology will have broader prospects for development. In the future, we can expect thermal imaging technology to play a more significant role in medical diagnosis, autonomous driving, smart homes, and other fields. Therefore, we encourage readers to delve deeper into the study and exploration of thermal imaging technology to seize future development opportunities.

Ayayu Handheld Thermal Imager


  • Sensor: MELEXIS MLX90640 IR sensor
  • IR Resolution: 24 x 32 pixels
  • Display Resolution: 240 x 320 pixels
  • Temperature Range: -40°C to 300°C
  • Accuracy: ±2°C
  • Field of View: 55° x 35°
  • Battery: 3.7V 600mAh rechargeable Li-ion
  • Image Storage: Stores up to 100 images
  • Dimensions: 4.1” x 4.0” x 2.0”
  • Weight: 3.84 oz

What’s in the Box

  • Ayayu Handheld Thermal Imager
  • USB Charging Cable
  • User Manual
  • Carrying Pouch

How to Use

  1. Charge the thermal imager fully before first use
  2. Power on the device using the side button
  3. Point camera lens at target object
  4. View live thermal imagery on the LCD display
  5. Press shutter button to capture IR images/videos
  6. Transfer the stored images via USB cable to PC
  7. Analyze thermal images to identify issues