Characteristics: This instrument can help diagnose injector problems and can be used to test injectors one by one or two at the same time to help confirm the condition of jamming, leakage, damage or burnout. Output power: switchable 12V and 5V, includes 2 pairs of connectors. It has 2 output voltage levels and 4 pulse signal output modes. Users can choose any depending on their needs. It uses a 12V battery in the vehicle or an external 12V DC power supply (recommended at least 1,5A) as a power source for continuous operation. Input short circuit protection function. The mode helps to identify good and bad injectors when the engine is off. This instrument can be used with any fuel pressure tester. Selectable activation modes: continuous, short medium and long switching outputs. The output cable is made of silica gel, which has better properties at high and low temperatures. Technical data: Position: Fuel Injector Tester Main Material: ABS Black color Power cable length: 1m Power supply: 12V battery or 12V DC power supply (2A recommended). Operating conditions: 0C-40C Relative humidity: 80 percent Storage conditions: -20C-50C Relative humidity: 85 percent Size: 12x8x2.5 cm Package Weight: 300g List of packages: 1 x Fuel Injector Tester 2 x Connector 1 x storage bag