Exploring the Invisible: ERDI's High-Performance Infrared Thermal Scope

3. Nov 2025 Rangefinder ERDI

——LRF640K35/LRF640K50

As a manufacturer specializing in laser ranging solutions, ERDI TECH's ranging modules with a 905nm output pulse and a ranging range of 2000m have been widely used in various laser products in recent years. This article will focus on one of its applications - used in infrared thermal imaging rangefinders, namely Explorer650-LRF and Explorer635-LRF. These two products integrate infrared thermal imaging and laser ranging performance, with excellent night imaging clarity and accurate ranging capability, which can meet customers' all-weather and multi-scenario observation needs.

In terms of performance:

In terms of thermal imaging, these two infrared thermal imaging rangefinders adopt UFPA (VOx) sensors with NETD ≤ 20mK and a 50Hz frame rate, which can meet most thermal imaging needs and achieve accurate recognition. In terms of ranging capability, they use ERDI's self-developed 905nm laser ranging module, which belongs to Class 1 (IEC 60825-1) eye-safe. Equipped with 50mm/35mm F1.0 lenses, they can achieve long-distance detection and accurate ranging.

In terms of application scenarios:

With an IP67 protection rating, operating temperature ranging from -20°C to +50°C, and an 8–14μm long-wave infrared band, they can adapt to harsh outdoor environments such as rain, snow, and sand dust. Integrated with an electronic compass, attitude sensor, WiFi/Bluetooth wireless transmission, 32GB storage, and a display screen (1024×768) supporting data transmission and sharing, they have complete functions and cover the needs of multiple outdoor scenarios.

In terms of battery life and energy consumption:

They use lithium batteries and support Type-C charging, with the overall power consumption of less than 2.5W, ensuring a battery life of ≥ 4 hours.

Summary:

The LRF640K35/LRF640K50, developed independently by ERDI TECH, has excellent long-distance detection capability, accurate ranging performance, and high thermal imaging quality. It can bring users a clearer and more reliable thermal imaging experience while ensuring cost-effectiveness.