Bm550 Car Battery Tester 6v 12v 24v 100-2000 2ah-220ah Battery System Detect Auto Battery Analyzer-a [Car Battery Tester] BM550 can test all 6V/12V/24V 100-2000CCA batteries including regular flooded, flat plate, spiral, or gel batteries. Provides overall analysis of battery health and helps you know its status in advance before it fails. Test results are based on industry standards. [Display Extensive Battery Data] Battery analyzer uses the latest conductivity method to measure. The tester scans the battery and provides an accurate test result including internal resistance, voltage, state of health, state of charge (SOC), and value test. [Fast and More Than 99.6% Accuracy] Built-in intelligent microprocessor ensures fast and accurate testing. Test results are displayed within two seconds. [Plug and Play] BM550 battery load analyzer allows you to test batteries both in-vehicle and out-of-vehicle, including dead batteries. Simply connect the tester's clips to the battery, and it turns on automatically, ready to test and analyze. Easy to use. [Safety and Protection] Designed with reverse polarity protection. If the positive and negative poles are reversed, it will not damage the device, car, or battery. Color: As shown Material: Plastic + Metal Package Contents: 1 x Battery Detector Only the above package content; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. Measurement error is +/- 1-3cm.