Specifications & Compatibility Voltage Range: 11V-15V (suitable for standard 12V car systems) Relay Type: Supports 4-pin and 5-pin automotive relays Coil Resistance Requirement: >20 ohm Core Components & Design Dual-Purpose Interface: Accommodates both 4-pin and 5-pin relays, with a switch to toggle between modes. LED Indicator: Lights up and emits a click sound when a relay is functioning normally, providing instant visual/audio feedback. Insulated Alligator Clips: Red (positive) and black (negative) clips with strong bite force, ensuring secure connection to the car battery. Durable Wiring: Thick red/black wires resist wear and tear, suitable for repeated use in engine bays. Usage Method Connect Power: Attach the red alligator clip to the car battery’s positive terminal and the blac.
