
Product Series : High Accuracy Clamp Leakage Current Meter
Measurement of AC leakage current, AC current, true effective value, filtering, maximum/minimum/average value, harmonics, distortion rate, etc.
Current Range: AC 0.00mA ~1200A
Harmonic Analysis: 21times
Clamp Jaw Size: Φ70mm
Data Storage: 2000 Groups
Bluetooth Communication Function
Flashlight Function
Rechargeable Lithium-ion Battery (Type-C charging port)
Product Introduction
EM6670 clamp-on leakage current meter, also known as a clamp-on leakage current tester, clamp-on ammeter, multifunctional clamp-on leakage current meter, or ground fault current tester, is used for measuring AC leakage current and AC current. The clamp meter features true RMS measurement, filtering functions, and testing capabilities such as maximum/minimum/average values, harmonics, and distortion ratio. The clamp meter’s sensor core utilizes a ferrite alloy and dual-layer shielding technology, making it virtually immune to external electromagnetic fields. This ensures high precision, stability, and reliability for continuous, uninterrupted measurements over the long term. It is widely applicable in fields such as power, telecommunications, meteorology, railways, oil fields, construction, metrology, research and educational institutions, and industrial and mining enterprises.
EM6670 clamp-on leakage current meter can measure currents in the 40 Hz to 1 kHz frequency range. It also features a backlight, flashlight, data storage, and Bluetooth connectivity. Powered by a high-capacity lithium battery and equipped with a Type-C charging port, this meter is an essential tool for electrical safety inspections.
ETCRMETER is a high-end brand of ETCR. All products are manufactured by ETCR, which also provides technical support and after-sales service.
Product Features
1. Wide frequency range: capable of measuring currents from 40 Hz to 1 kHz, making it an essential tool for electrical safety inspections.
2. Features a Permalloy core and dual-layer shielding technology, ensuring high accuracy, strong anti-interference performance, and a resolution of 10 μA.
3. The clamp meter features true RMS measurement, filtering, and testing functions such as maximum/minimum/average values, harmonics, and distortion ratio.
4. Data storage function.
5. Bluetooth communication function.
6. Flashlight function.
7. Lithium battery (Type-C charging port).
Technical Parameters
| Specification | Parameters Description |
| Power Supply | 3.7V DC, 1000mAh lithium battery |
| LCD Screen | Overall: 43mm×38mm; Display area: 36.5mm×29mm, with backlight |
| Measuring Range | 0.00mA~1200A |
| Resolution | 10μA |
| Accuracy | 0.00mA~999mA ±1.5%rdg±5dgt |
| 1.00A~300A ±1.5%rdg±5dgt | |
| 300A~599A ±2.0%rdg±5dgt | |
| 600A~1199A ±2.5%rdg±5dgt | |
| 1200A~2000A ±2.5%rdg±5dgt | |
| Flashlight | Equipped |
| Filter Function | Filter ON: 40Hz~70Hz; Filter OFF: 40Hz~1kHz |
| Harmonic Analysis | Up to 21st order (≥10mA) |
| THD Test | Available (≥10mA) |
| Max/Min Value | Supported |
| Average Value | Supported |
| Data Hold | Available |
| Data Storage | 2000 records (saved via APP) |
| Overrange Display | Shows "OL" when overloaded |
| Bluetooth | Available; measure & view data on mobile via APP |
| Auto Power-off | Auto shutdown in approx. 5 mins after startup for power saving |
| Battery Indicator | 4-level bar display |
| Sampling Rate | 2 readings per second |
| Operating Current | 60mA; 72mA with flashlight on |
| Jaw Diameter | Φ70mm |
| Dimension | 237mm×131mm×40mm |
| Weight | Approx. 477g (with battery); 750g total (including accessories) |
| Circuit Voltage Test | For AC circuits ≤600V |
| Dielectric Strength | AC 3700V/rms (between core and housing) |
| Safety Standard | IEC1010-1, IEC1010-2-032, Pollution Degree 2, CAT Ⅲ(600V) |
| Operating Condition | -10℃~50℃, RH<80% |
| Storage Condition | -20℃~60℃, RH<70% |
Model Comparison
| Product Model | Current Range | Jaw Size | Harmonic Analysis | Storage Function |
| AC 0.000mA~60.0A | Φ30mm | —— | 99 groups |
| AC 0.00mA~300.0A | Φ40mm | —— | 99 groups |
| AC 0.00mA~300.0A | Φ40mm | 21 times | 2000 groups |
| AC 0.00mA~1200A | Φ70mm | 21 times | 2000 groups |
| AC 0.00mA~2000A | 80mm×80mm | 21 times | 2000 groups |
| AC 0.0mA~3200A | 108mm×148mm | —— | 99 groups |
| AC 0.0A~4000A | 108mm×148mm | —— | 99 groups |
Product Video

+86 13802922567 (Johnson Zhang)


+86 13809214246 (Wendy Wong)

10th Floor, Block 5, Liandong Intelligent Manufacture Park, No. 105, Shilong North Road, Nanhai District, Foshan City, Guangdong, China