Features: Quickly diagnose automotive relays faults with precise through multiple testing modes (operations indicators, contact continuity, voltages detection), ensuring optimal vehicle electrical systems performances. Compact ABS built diagnostic tool features bright LED indicators, and a digital display for fast visual during relays testing and electrical troubleshooting. Ideal for car owners, mechanics, and diyer enthusiasts seeking portable automotive diagnostic tools to maintain or repair vehicles in garages, workshops, or roadside emergencies. Effortlessly verify relays functionality in daily car maintenance, pre trip inspections, or complex electrical repairs using this lightweight tester stored in its included carry case. Achieve reliabled results with high precise voltages measurement and visual alerts, eliminating guesswork in identifying defective relays across cars, trucks, and motorcycles. Specifications: Component: ABS Size:Approx.120x65mm/4.72x2.55inch Color:Black Power supply interfaces: TYPE C cable, mobile phone, charging treasure, vehicle power supply, adapter Power supply: input voltages and current: 5VDC, 1A-2A. Applicable relays pin number: 4PIN, 5PIN Package Includes: 1pcs Automotive Relays Tester note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.