Handheld thermography camera

Issue 3 2022 Products

Dahua Technology has launched its thermal handheld thermography camera, a portable diagnostic instrument for daily inspections in the industrial field. Its lightweight design, powerful visualisation capabilities, real-time alarm and other ease-of-use features make it a reliable tool for early failure prediction and preventative maintenance in small industrial scenarios.

The Dahua HI20 product adopts thermal imaging technology to detect potential issues in numerous preventative maintenance tasks through non-contact temperature measurement. Compared to a single-point infrared thermometer, the HI20 presents real-time images and informative details for quick inspection, allowing users to analyse, identify and diagnose potential problems more quickly and efficiently.

High-resolution for quick inspection

With a high resolution of 256 x 192 effective pixels and F1.0 large aperture, the HI20 delivers wide-angle clear images. It supports a 256 GB Micro SD Card that provides up to 10 000 images and over two hours of video per gigabyte. Moreover, it also offers PC connectivity to view, manage and share images and videos.

In addition to producing a thermographic image, the HI20 includes a laser pointer that allows users to detect the temperature of specific areas, reducing temperature reading deviations.

Quick snapshot and recording

The HI20 offers a multi-functional trigger that allows users to pinpoint areas with its built-in laser pointer, capture screenshots and record videos. Squeeze the trigger once to activate the laser pointer, twice to capture a screenshot and pull three times to record a video.

Thanks to its rugged design, the HI20 can withstand a 2 m drop. With an IP54 rating, it can operate under harsh environments from -20°C to +50°C, making it ideal for various scenarios and applications within the industrial field.

For sudden temperature rises that could lead to equipment failure or a possible fire hazard, the HI20 provides a customisable maximum-temperature prompt. It can trigger an audible alarm and automatic screenshot when that temperature threshold is detected.


Unlike other high-end thermal imaging products, the HI20 provides a financially viable choice for budget-saving customers. As an entry-level product, it is suitable for scenarios such as electrical inspections, building and residential inspections, HVAC system inspections, automotive repairs and maintenance, etc.

Electrical connections and components with potential issues such as loose connections, bad contacts and electrical circuit overloads typically show no signs of overheating until they fail, which may increase the risk of industrial fires in electrical equipment. The HI20 handheld thermography camera can help inspectors locate the exact area of abnormal temperatures that the eye cannot identify, thus reducing the risk of electrical fires and unexpected breakdowns.

The HI20 handheld thermography camera can even help solve challenges in traditional building inspections. For example, it allows inspectors to monitor temperature differences in the field, giving them a good indication of the extent of the potential anomalous areas, such as spotting water leaks behind walls, under floors and on windowsills. Additionally, it addresses the energy consumption problem caused by dust and heat loss during HVAC system inspections.

With built-in temperature functionality, the Dahua handheld thermography camera can detect and display crucial temperature measurements with accuracy and clarity. By integrating a high-resolution display, laser pointer, built-in alarm and easy-to-use button interface – among its other features - the HI20 provides multiple benefits into one economical handheld device, which greatly facilitates industrial inspection and regular device checkups, helping users save time and improving work efficiency.


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