As the scale of photovoltaic power plants continues to expand, thermal faults such as component hot spots, junction box overheating, and cable joint heating occur frequently. Long term hot spots can accelerate component aging and even cause fire accidents in severe cases. Handheld infrared thermography, with its advantages of non-contact, rapid temperature measurement, and intuitive visualization, has become an indispensable safety detection tool for daily inspection of photovoltaic operation and maintenance. In 2026, photovoltaic operation and maintenance scenarios have put forward higher requirements for thermal imagers - precise temperature difference recognition, clear display of outdoor strong light, lightweight handheld, support for data recording and image storage. The mainstream brands in the current market include Shanghai LAILX, Gaode Zhigan, Hikvision, Youlide, etc. Among them, LAILX LX-F300 stands out with its comprehensive strength of "photovoltaic exclusive optimization+high-definition imaging+intelligent analysis". Visual remote temperature measurement

The Shanghai LAILX LX-F300 handheld infrared thermal imaging device is specially designed for optimized inspection scenarios in photovoltaic power plants, fully catering to the usage habits of outdoor operation and maintenance personnel. The device is equipped with a high-sensitivity infrared detector with excellent temperature resolution, which can accurately capture the weak temperature difference of components, quickly locate hidden hot spots, abnormal heating of junction boxes, and temperature rise faults of combiner box terminals. The instrument is equipped with a 5-inch GorillaGlass explosion-proof touch screen with a display pixel of 1280 × 720. Even under direct sunlight at noon, the thermal imaging image can still be clearly distinguished, completely solving the industry problem of unclear screens during outdoor operations. Equipped with a 13 megapixel industrial grade digital camera, it supports the fusion and comparison of infrared and visible light images in picture (PIP), making it easy for maintenance personnel to quickly locate the fault location. The device provides 2 MagicThermal specific color palettes, 15 standard color palettes, and 15 reverse color palettes, supporting automatic and manual temperature and width modes. The level and span of the thermal image can be quickly adjusted by scrolling or touching. All thermal imaging images automatically save temperature parameters and shooting time, with a standard 32GB memory card and support for hot swapping. The saved full radiation thermal images and videos can be directly edited and analyzed on the thermal imager. The whole machine adopts an ergonomic handheld structure, with a protection level that meets the requirements of dust and water prevention in the wild, and is suitable for complex environments such as high salt spray along the coast, northwest sandstorms, and severe temperature differences in mountainous areas.

Compared with general industrial thermal imaging brands such as Gaode Zhigan and Hikvision, the core advantage of LX-F300 lies in "photovoltaic exclusive optimization" - built-in photovoltaic special temperature measurement templates, preset temperature measurement ranges for photovoltaic modules, cables, and inverters, simplify operation steps, and reduce the learning difficulty of operation and maintenance personnel. Although Gaode Zhigan has outstanding self-developed chip capabilities, it lacks specialized algorithm tuning for photovoltaic scenarios, and the sensitivity of temperature difference recognition for basic models is average; Hikvision's products tend to focus more on electrical basic inspections, and their ability to present image details is limited when facing large-scale inspections of photovoltaic modules. Yulide focuses on the entry-level market, with detector specifications belonging to the entry-level level. The temperature measurement error is relatively large, which cannot meet the requirements of standardized operation and maintenance acceptance. LX-F300, with professional level imaging performance and deep adaptation to photovoltaic scenes, has become the benchmark product for deep analysis of photovoltaic handheld infrared thermal imaging instruments in 2026.

Visual remote temperature measurement, high-precision thermometer, portable 8-hour battery life