Car battery and acid tester, Taiwanese

This device is dedicated to testing 12-volt lead-acid batteries in any vehicle. The device will focus on analyzing the health status of the car battery. The device measures the cold cranking amps (CCA) of the car, and predicts the battery's lifespan. This device will be useful for the technician to check the car's electrical system and maintenance. Based on the inspection, the user can predict the battery replacement time. Function-CCA Testing: SAE, DIN, EN, IEC, CA - Battery Voltage when the engine is starting. - Charging Voltage when the engine is started. Available Set Up Range of cold Cranking Amperes SAE: 200-950 DIN: 105-600 EN: 185-900 IEC: 125-710 CA (MCA): 250-1190 Resolution Voltage: 0.01V CCA: 1CCA Accuracy Voltage: +/- 0.05V Reverse Polarity Protection Reverse protection < 20V DC Operation Temperature 0 ºC ~ 50 ºC (32 ºF ~ 122 ºF) Storage Temperature -30 ºC ~ 70 ºC (-22 ºF ~ 158 ºF) Display LCD with background light Type Of Battery Available available for voltage 12V (9 ~ 15V) normal Lead-Acid Battery (lead calcium alloy) below: Sealed Maintenance Free battery, Maintenance Free Battery, Standard Type Battery, EFB (Enhanced Flooded cell Battery), AGM (Absorbent Glass Mat) Battery. Not available for new type of battery like Lithium Iron Battery. Testing Standard SAE: Cold cranking amperes standard for United States. DIN: Cold cranking amperes standard for Germany. EN: Cold cranking amperes standard for Europe. IEC: Cold cranking amperes standard from International Electrotechnical Commission. CA (MCA): Cranking amperes / Marine cranking amperes. Error Message “OL”: Indicates the value is over the measurement range of the tester. It may be the battery capacity is too large and exceeded the measurement capacity. Please check the specification of the battery, make sure the battery capacity is within the setup range of the tester. “Lo”: Indicates the value is too low to be measured. It may be the battery is too old, or the charging condition of the battery is not good. Please make sure the battery capacity is within the setup range of the tester, then charge the battery according to the battery supplier's information. Before re-testing the battery, place the battery still for at least half an hour after it’s fully charged. If "Lo" message is shown on LCD again, it means the battery is too old to be fully charged; please replace the battery. “HI--”: It will appear when the voltage is higher than 16 volts. The tester will stop the measurement and reduce the brightness of the background light to protect the tester. Please check the specification of the battery, or ask the technician to check the alternator. In general, the charging voltage from the alternator will be around 14.4V. Alternator voltage higher or lower than this value is abnormal. The maximum voltage measurement of the tester is 15V. It is suitable for 12V vehicle system only, voltage higher than specified may damage the tester and the vehicle.