Digital Multimeter Voltage Resistance Measuring Automatic Identification Electrical Voltmeter Tester Item Type: Digital Multimeter Model: HT123 Material: ABS Battery: 1.5V AAA Battery x 2 (Without Battery) Application: Electrical Parameter Measurement Basic Parameters: DC Voltage: Range: 4V Resolution: 0.001V Range: 40V Resolution: 0.01V Range: 400V Resolution: 0.1V Range: 600V Resolution: 1V Accuracy: ±(1.0% Reading+ 5 Digits) Measurable Voltage: 0.8V-600V Overload Protection: 600V Maximum Measuring Voltage: 600V AC Voltage: Range: 4V Resolution: 0.001V Range: 40V Resolution: 0.01V Range: 400V Resolution: 0.1V Range: 600V Resolution: 1V Accuracy: ±(1.2% Reading+ 5 Digits) Measurable Voltage: 0.8V-600V Overload Protection: 600V Frequency Response: 40 to 1000Hz True RMS Resistance: Range: 4KΩ Resolution: 0.001kΩ Range: 40KΩ Resolution: 0.01kΩ Range: 400KΩ Resolution: 0.1kΩ Range: 4MΩ Resolution: 0.001MΩ Range: 40MΩ Resolution: 0.01MΩ Accuracy: ±(1.2% Reading+ 5 Digits) Overload Protection: 250V NOTE: 1. Before using the instrument, please read this manual carefully, and use the instrument strictly in accordance with the operation of this manual, otherwise the protection function provided by the instrument may be damaged or weakened. 2. Use extreme caution when measuring beyond 60VDC, 30VAC RMS or 42V peak. Such voltages present a danger of electric shock. 3. Do not measure voltages higher than the rated value between terminals or between terminals and ground. 4. Check whether the meter is working properly by measuring the known voltage. If it is abnormal or damaged, do not use it. 5. Before using the instrument, please check whether the casing of the instrument is cracked or the plastic parts are damaged. If so, please do not use it again. 6. Before using the meter, please check whether the test leads are cracked or damaged. If so, please replace the test leads of the same model and electrical specifications. 7. Use the meter according to the measurement category, voltage or current rating specified on the meter or manual. 8. Follow local and national safety regulations. Wear protective equipment (such as approved rubber gloves, masks, flame retardant clothing, etc.) to prevent injury from electric shock and arcing when hazardous live conductors are exposed. 9. When the low battery indicator of the meter appears, please replace the battery in time to prevent measurement errors. 10. Do not use the meter around explosive gas or water or in a humid environment. 11. When using the test leads, keep your fingers behind the probe finger guard. 12. When measuring, please connect the neutral wire or ground wire first, and then connect the live wire; when disconnecting, please disconnect the live wire first, then disconnect the neutral wire and ground wire. 13. Before opening the case or battery cover, remove the test leads from the meter. Never use the meter with the meter disassembled or with the battery cover open. 14. The meter can only meet the requirements of safety standards when used with the provided test leads. If the test lead is damaged and needs to be replaced, it must be replaced with a test lead of the same model and electrical specifications.