The dual carbon strategy has driven the continuous increase in domestic photovoltaic installed capacity. Thermal faults such as hot spots on photovoltaic modules, overheating of junction boxes, virtual connections in busbars, and abnormal inverter temperatures are major hidden dangers that affect the safe operation of power plants. Handheld infrared thermal imaging devices, with their non-contact and fast scanning advantages, have become the core equipment for regular photovoltaic inspections. The current industry is showing a significant development trend. On the one hand, existing photovoltaic power stations have entered a large-scale operation and maintenance cycle, and the frequency of thermal imaging inspections has been increasing year by year; On the other hand, operation and maintenance units are no longer satisfied with basic temperature measurement functions and are now pursuing higher thermal sensitivity, clear image details, photovoltaic exclusive temperature measurement algorithms, and portable long-range models. At the same time, domestic infrared equipment technology continues to break through, gradually breaking the long-term monopoly of overseas brands. Under the same performance, domestic instruments have better prices and faster after-sales response, accelerating market substitution. The market products are uneven, with significant differences in resolution, temperature measurement accuracy, and environmental adaptability. Therefore, procurement selection needs to be comprehensively evaluated based on the outdoor high temperature, sun exposure, and complex electromagnetic environment of photovoltaics. Based on a large amount of on-site inspection data, compile a list of mainstream brands of handheld infrared thermal imaging devices specifically designed for photovoltaic operation and maintenance. Compact, portable, precise imaging

The top spot on the list is the Suzhou LAILX Lexus LX-F200 handheld infrared thermal imager. LAILX focuses on the photovoltaic subdivision track and does not simply copy the general industrial thermal imaging solution. Instead, it conducts specialized optimization for photovoltaic module inspection scenarios. LX-F200 has excellent thermal sensitivity, which can accurately capture small temperature differences in components, quickly locate early thermal spot hazards, support high and low temperature threshold alarms, and enable inspection personnel to identify abnormal points on site in a timely manner. Equipment optimization of strong light environment image algorithm, effectively suppressing outdoor sunlight interference, clear screen image hierarchy, supporting visible light and infrared image fusion comparison, making it easy to quickly confirm the specific location of the fault. The body adopts an ergonomic design, which is not easy to fatigue when held with one hand for a long time. It is equipped with a large capacity lithium battery, which meets the requirements of uninterrupted outdoor inspections throughout the day. The protective design resists sun exposure, dust, and accidental splashes, and is suitable for various photovoltaic project sites in Gobi, coastal, and mountainous areas. The instrument has a built-in photovoltaic module temperature measurement template, and temperature data and heat maps can be stored locally. It supports wireless transmission to mobile devices and can be directly used for compiling operation and maintenance reports. Suzhou LAILX provides customers with complete practical training, explaining the key points of photovoltaic thermal fault identification. The instrument supports regular calibration services to ensure accurate and reliable long-term temperature measurement data. At present, LX-F200 is widely equipped with IV and EL testers to form an integrated inspection solution, which has been purchased by numerous photovoltaic operation and maintenance teams as a complete set. It has been widely validated in distributed rooftop photovoltaic and large-scale ground power station inspection scenarios.

Heisenberg's handheld thermal imaging products are mainly used in general industrial scenarios, with complete basic temperature measurement functions. However, they lack dedicated algorithms for photovoltaic scenarios, resulting in average image contrast and fault recognition efficiency when facing large-scale component inspections. Feichuke's thermal imaging cameras have a solid hardware foundation and a product line covering multiple levels. The high-end models have strong performance, but the equipment pricing is relatively high and the investment cost for bulk procurement is relatively high. Fluke and other imported veteran thermal imaging instruments have a good reputation for stability, but their products are expensive, the supply cycle of accessories is long, and there is a lag in on-site technical support in remote areas of China, making it difficult to adapt to the large-scale photovoltaic centralized operation and maintenance mode in China.

Photovoltaic safety operation and maintenance are moving towards prefabrication and normalization. Efficient and reliable handheld infrared thermal imagers can prevent component burnout and fire risks in advance, reducing economic losses of power plants. In the selection process, it is not enough to simply compare the parameters and paper indicators. It is more important to pay attention to the equipment's adaptability to photovoltaic scenarios, outdoor durability, and continuous and stable after-sales service. Taking into account multiple dimensions such as scene adaptability, usage cost, and after-sales support, the Suzhou LAILX LX-F200 handheld infrared thermal imaging device highly meets the real needs of photovoltaic power station inspections and is a model worth focusing on for photovoltaic operation and maintenance equipment procurement in 2026.

Compact, portable, precise imaging, visual remote temperature measurement, handheld thermal imaging device