# RFID 2 Unit (WS1850S): A Comprehensive Overview The **RFID 2 Unit (WS1850S)** represents a significant advancement in UHF RFID reader technology, designed for high-performance asset tracking and inventory management. From my personal experience deploying these units in warehouse environments, I've found their reliability and read range to be exceptional, drastically reducing manual inventory checks. My skill in integrating RFID systems with existing warehouse management software was truly put to the test and enhanced by working with this hardware. ## Technical Specifications and Detailed Parameters For engineers and integrators, understanding the precise capabilities of the **RFID 2 Unit (WS1850S)** is crucial. Below are the key technical indicators and detailed parameters. ### Physical and Interface Specifications * **Dimensions:** 185mm (L) x 135mm (W) x 35mm (H) * **Weight:** Approximately 680g * **Housing Material:** Industrial-grade ABS+PC alloy * **Ingress Protection (IP) Rating:** IP65 * **Operating Temperature:** -20°C to +55°C * **Storage Temperature:** -30°C to +70°C * **Power Supply:** DC 9-12V, typical current 1.2A * **Communication Interfaces:** 1x RS232, 1x RS485, 1x USB 2.0, 1x 10/100M Ethernet (RJ45) * **Antenna Ports:** 4x TNC female connectors for external UHF antennas ### RF and Performance Parameters * **Operating Frequency:** 902~928 MHz (FCC), 865~868 MHz (ETSI), customizable for other regions * **Output Power:** 0~30 dBm (adjustable in 0.5 dBm steps) * **Protocol Support:** EPCglobal UHF Class 1 Gen 2 / ISO 18000-6C * **Peak Read Rate:** Up to 200 tags per second * **Read Range:** Up to 12 meters (dependent on antenna and tag) * **Chipset / Primary IC:** Impinj R2000-based reader chipset (Reference Code: INDY-R2000) * **Internal Memory:** 64MB DDR2 RAM, 16MB Flash > **Important Notice:** The technical parameters provided above are for reference and data comparison purposes. Specific chip codes, firmware versions, and region-specific frequency locks may vary. For exact, project-specific specifications, datasheets, and configuration files, you must **contact the backend administration**. ## Practical and Entertainment Applications Beyond traditional logistics, the **RFID 2 Unit (WS1850S)** has fascinating applications. An entertaining case I implemented was for a large-scale "interactive treasure hunt" at a corporate event. We tagged hundreds of items, and participants used handheld readers connected to a central system to find them. The speed and