The GEARWRENCH GWSCAN2PK is a professional-grade 2-pack of Bluetooth OBD2 diagnostic testers designed for comprehensive vehicle health monitoring. These compact modules plug directly into a vehicle's OBDII port to read and clear diagnostic trouble codes, including ABS and manufacturer-specific fault definitions across over 85 vehicle brands. The system integrates with the GWSCAN app for iOS and Android, providing free lifetime software updates with no subscription fees. Key features include full system scans, Mode $06 monitoring to identify potential faults before they trigger a check engine light, and real-time performance tracking of driving behavior, fuel consumption, and engine data. Each unit is powered by an ARM Cortex-M4 processor for fast data processing and is built with a durable plastic body to withstand professional garage environments