Features Durable Zinc Alloy Construction - Crafted from high-quality zinc alloy, this holder is resistant to corrosion and wear, ensuring long-lasting performance in any lab environment Innovative Three-Jaw Design - The three-jaw mechanism distributes weight evenly, providing a secure and stable grip on your flasks and tubes for reliable experimentation Non-Slip Claw with Sleeve - Features a specially designed claw portion with a non-slip sleeve that enhances grip, preventing accidental slips and ensuring your samples stay securely in place Versatile Compatibility - Ideal for holding small flasks or cylindrical glass tubes, this clamp accommodates a variety of lab equipment to meet your specific research needs Adjustable Clamp Diameter - The prong clamp adjusts to fit circular objects with diameters ranging from 0-80mm (0.0-3.1in), providing flexibility for different lab setups and experiments Features: 1、SMALL SIZE Lightweight and portable, it can be easily used for testing in various situations, does not take up extra space, and can have higher practicability. 2、SCIENTIFIC DESIGN According to the principle of solar reflection, its index is analyzed based on a specific alternating current signal, and the detection result is very accurate. 3、MULTIFUNCTION It supports the analysis of 4 accurate battery indicators: voltage, resistance, CCA value, battery condition, and can understand the battery condition in an all round way. 4、PROFIONAL DESIGN Supports the detection of lead？acid batteries for 12V starting, and continuous testing will not damage the battery, ensuring safety and reliability. 5、DIGITAL DISPLAY DESIGN With LCD backlit display, its display is clear, it is more convenient to record and measure data, and it is more convenient to work at night. Specification: Item Type: Car Battery Tester Model: AE300 Material: ABS Purpose: It is suitable for battery fault detection. Support Language: English Fahrenheit (℉)350% Package List: 1 x Car Battery Tester 1 x Manual Package List 1 x Car Battery Tester 1 x Manual