The LL-253VD1F-1B is a high-performance sensor module made by the Lucky Light Company. It can be used for a variety of applications that require precise detection of motion or changes in ambient conditions. It consists of the main body, a digital interface module, a temperature sensor, and an adjustable gain amplifier. The module has a wide detection range and is protected by a robust IP67 housing, which makes it suitable for a range of outdoor and industrial applications. Additionally, the module is designed to be compatible with a range of communication protocols, including CANopen, UART, and Modbus RTU.