Bm550 Car Battery Tester 6v 12v 24v 100-2000 2ah-220ah Battery System Detect Auto Battery Analyzer-a f74 [Car Battery Tester] BM550 can test all 6V/12V/24V 100-2000CCA batteries including regular flooded, flat plate, spiral, or gel batteries. Provide overall analysis of batteries' health and help you know its status in advance before it dies. The test results based on Standard. [Display Extensive Batteries Data]Battery analyzer applied with the latest conductivity method to measure, the tester will scan the battery and give you an accurate test result in. Including internal Resistance Test,Voltage Test,status of Healthy ( ), status of charge (SOC) and value test. [Fast and more than the 99.6% Accuracy]With the bulit-in intelligent microprocessor which makes test fast and accurate, compared. The test results can be displayed within two seconds. [Plug and Play] BM550 Battery load analyzer allows you to test batteries both in-vehicle and out-of-vehicle, and even test dead batteries. Just connect the tester's clips with battery then it will turn on and ready to test and analyze battery. It's that easy [Safty and Protection]Deigned with polarity reverse connection protection.If the positive and negative poles are reversed, it won't damage the device or affect the car or the battery. Colour:As shown Material:Plastic + Metal Package Contents: 1 * 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.