1. Scope of use: all car lead-acid starter batteries, including ordinary full liquid, EFB, AGM flat battery, AGM wound battery, GEL battery, etc. 2. Suitable for: car factories, garages, car battery manufacturers, car battery agents, educational institutions, DIY enthusiasts, etc. 3. Test range: CCA100-2000, 30-200Ah 4. Test results: SOH, SOC, CCA value, IR, start-up and charging system, etc. 5. Test standards: CCA, BCI, CA, MCA, JIS, DIN, IEC, EN, SAE, GB 6. Voltage measurement range: 7-30VDC 7. Working temperature: -20 degrees to 50 degrees 8. Power: 2W-5W 9. Voltage: 2-30V 10. Housing material: ABS