EM7700 Electrical Comprehensive Tester is meticulously designed and manufactured for comprehensive on-site electrical safety testing.  The instrument features a brand-new structural design and integrates large-scale integrated analog circuits, digital circuits, and microcomputer chips. It is suitable for insulation and grounding connection testing of various electrical equipment, and for the maintenance, testing, and verification of residual current devices (RCDs). It is a professional power inspection tool in the power and electrical field.
The instrument features a 7-inch touch color screen for easy operation. It can measure parameters such as ground resistance, insulation resistance, DC resistance, RCD leakage protection testing, electrical socket detection, RMS current, AC voltage, and phase sequence. The instrument offers more comprehensive functions, higher accuracy, stable performance, and convenient and reliable operation.
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. 7-inch touch color screen, displaying test data simultaneously. Testing operations and historical record retrieval are very convenient.
2. Modular operation for various test functions, including ground resistance testing, insulation resistance testing, DC resistance testing, RCD leakage protection testing, electrical socket detection, and power parameter testing, providing clear and convenient operation.
3. Test diagrams and wiring labels are distinguished by different colors to facilitate user understanding in different functions.
4. 7.4V 10400mAH large-capacity lithium battery ensures long-term testing.
5. Customizable automatic shutdown time.
6. Built-in wiring diagrams for each function module, making it easy for users to refer to the wiring.
7. Large-capacity test record storage, allowing direct browsing and analysis of test records on the instrument. Automatically stores 1000 sets of real-time test data with test date and time.
8. USB communication upload function allows uploading recorded data to a computer for storage and statistical analysis.
9. Double-layer shell structure, robust and durable, with IP65 protection rating (when the cover is closed).