Features Current Measuring: Specially designed for measuring AC leakage current, uses unique CT and digital integration technology to ensure high accuracy measurement. Less Interference: The clamp adopts magnetic shielding technology, which is hardly affected by external electromagnetic field, with high accuracy and good stability. Multi Measurement: Clamp meter has true RMS measurement, filtering function, maximum value, minimum value, average value, harmonic, distortion rate and other functions. Other Functions: Equipped with 3.7V 1000mAh rechargeable lithium battery, easy to use, with backlight, flashlight, data retention and Bluetooth communication function. Wide Application: Widely used in electric power, communication, meteorology, railway, oil field, construction, measurement, industry and mining, etc. Specification: Item Type: Leakage Ammeter Clamp Model: ETCR6670 Material: ABS Battery: 3.7V 1000mAh lithium battery (built in battery) 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~1200A Measurement Accuracy: 0.00mA-999mA，±1.5%rdg±5dgt； 1.00A-300A，±1.5%rdg±5dgt； 300A-599A，±2.0%rdg±5dgt； 600A-1200A，±2.5%rdg±5dgt； LCD Backlight: Yes Flashlight: Yes Filtering Function: Filter On: 40Hz-70Hz; Filter Off: 40Hz-1kHz Harmonic Analysis: 21 times (above 10mA) Distortion Rate: Yes (more than 10mA) Maximum Minimum Values: Yes Average: Yes Data Retention: Yes Data Storage: 2000 groups (stored through APP) Overflow Display: Overrange Overflow Function: OL sign display Bluetooth Communication: Yes, you can test or view the test results on your mobile phone after installing APP Automatic Shutdown: The instrument shuts down automatically after about 5 minutes of startup to reduce battery consumption Battery Power: 4 levels display Sampling Rate: 2 times per second Working Current: 60mA (turn on flashlight 72mA) Line Voltage: Line test below AC600V Working Environment: -10℃-50℃; Below 80%RH Storage Environment: -20℃-60℃; Below 70%RH Insulation Strength: AC 3700V/rms (between core and shell) Package List: 1 x Leakage Ammeter 1 x User Manual 1 x USB Cable 1 x Storage Bag Package List 1 x Leakage Ammeter 1 x User Manual 1 x USB Cable 1 x Storage Bag