Features: Parasitic drain tester can test the standby of the car-ECU, normal working current or abnormal working current electronic components-while the car ECU-is kept powered on, so there no need to worry about repeated testing due to loss ECU-data. Using a unique U-shaped battery terminals spring clip, it can be-connected to the battery terminals without removing the battery terminals cable. The car drain tester allows using standard test leads to measure the-voltage at different positions of the vehicle during the drainage test. In terms of performance, upgrade-protection also-did, which the fuse is not easy to blow & power consumption is small. Fully wrapped high-current battery-clips & low-resistance switches are used, durable & efficient. Tester is equipped with a switch-that can be turned off before connection to increase safety. The multimeter passed by the switch-during the connection process to prevent power surges. It adopts a 4mm pure-copper banana plug-that can be inserted continuously, and when using a multimeter to read the current value, it can also be superimposed on the multimeter to test the-voltage or current (compared to the multimeter). Adopt all-inclusive high-current battery clip to ensure smoother-operation of the product. Adopt high-current, low-resistance switch-to improve product life. Specifications: Material:Plastic Size:As Picture Shown Note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Tester Tool Cable