Feature:1. AC Current Meter: Clamp meter is specially designed for measuring AC leakage current and current, adopts unique CT technology and digital integration technology, with small size, high accuracy and complete functions.2. Anti Interference: The clamp head adopts magnetic shielding technology, which is hardly affected by external electromagnetic field, has high measurement accuracy and good stability.3. Multi Functions: The clamp meter has true RMS measurement, filtering function, maximum minimum average value, harmonic, distortion rate and other test functions.4. Easy to Use: The current meter also has backlit, flashlight, data retention, Bluetooth communication and other functions, uses large capacity rechargeable lithium battery, portable and easy to use.5. Wide Applications: Widely suitable for electric power, communication, meteorology, railway, oil field, construction, metrology, scientific research and teaching units, industrial and mining enterprises and other fields.Specification:Item Type: Clamp Current MeterMaterial: ABSModel: ETCR6640Battery: Lithium battery 3.7V 1000mAh (built in)Usage: Widely used in electric power, communication, meteorology, railway, oil field, construction, measurement, scientific research and teaching units, industrial and mining enterprises and other fieldsBasic Parameters:Measuring Range: 0.00mA to 300AMeasurement Accuracy:0.00mA To 999mA: 1.5%rdg5dgt1.00A To 300A: 1.5%rdg5dgtThe above is the current error in the range of 40Hz to 70Hz. When the range of 71Hz to 1KHz or the filtering function is turned on, the measurement error is doubled on the basis of the above error. During the test, the measured wire is in the center of the jaw, and the maximum error of position deviation is increased by 1 timeLCD Backlit: HaveFlashlight: HaveFiltering Function: On: 40Hz to 70Hz, Off: 40Hz to 1kHzHarmonic Analysis: 21 times (more than 10mA)Distortion Rate: Have (more than 10mA)Maximum and Minimum Valve: HaveAverage Value: HaveData Retention: HaveData Storage: 2000 groups (stored through APP)Overflow Display: Overrange overflow function: "OL" symbol displayBluetooth Communicator: Yes, you can test or view the test results on your mobile phone after installing APPAutomatic Shutdown: After about 5 minutes of power on, the instrument will automatically shut down to reduce battery consumptionBattery Level: 4 grid displaySampling Rate: 2 times per second.Package List:1 x Clamp Current Meter1 x USB Cable1 x Manual1 x Storage Bag