Features 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 Meter Material: ABS Model: ETCR6640 Battery: 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 fields Basic Parameters: Measuring Range: 0.00mA to 300A Measurement Accuracy: 0.00mA To 999mA: ±1.5%rdg±5dgt 1.00A To 300A: ±1.5%rdg±5dgt The 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 time LCD Backlit: Have Flashlight: Have Filtering Function: On: 40Hz to 70Hz, Off: 40Hz to 1kHz Harmonic Analysis: 21 times (more than 10mA) Distortion Rate: Have (more than 10mA) Maximum and Minimum Valve: Have Average Value: Have Data Retention: Have Data Storage: 2000 groups (stored through APP) Overflow Display: Overrange overflow function: "OL" symbol display Bluetooth Communicator: Yes, you can test or view the test results on your mobile phone after installing APP Automatic Shutdown: After about 5 minutes of power on, the instrument will automatically shut down to reduce battery consumption Battery Level: 4 grid display Sampling Rate: 2 times per second Package List 1 x Clamp Current Meter 1 x USB Cable 1 x Manual 1 x Storage Bag