Introducing, the HOBOY’s CEM DT-6650 Multifunctional Comprehensive Electrical Tester, the must-have tool for all your electrical testing needs. This versatile device is designed to measure ground resistance, loop resistance, and insulation resistance with precision and ease.
With its compact and ergonomic design, the HOBOY’s CEM DT-6650 is perfect for both professional electricians and DIY enthusiasts. The large LCD screen displays clear and accurate readings, making it easy to interpret and analyze your results. Plus, the built-in flashlight ensures that you can work confidently in any lighting conditions.
The ground resistance function allows you to quickly and accurately measure the resistance of an electrical circuit to ground, ensuring safety and compliance with industry standards. The loop resistance feature measures the resistance in a closed loop circuit, helping to identify any faults or issues that may be affecting the performance of your electrical system.
The insulation resistance tester is perfect for testing the integrity of insulation on cables, motors, transformers, and other electrical equipment. By detecting any breakdown or deterioration in insulation, you can prevent potential electrical hazards and ensure the longevity of your equipment.
In addition to its advanced testing capabilities, the HOBOY’s CEM DT-6650 offers a range of convenient features to enhance your user experience. The auto power-off function helps to conserve battery life, while the data hold and data logging functions allow you to save and review your measurements at a later time.
Whether you are working on commercial, industrial, or residential projects, the HOBOY’s CEM DT-6650 Multifunctional Comprehensive Electrical Tester is the reliable and accurate tool you need to get the job done right. Invest in quality and efficiency with the HOBOY’s CEM DT-6650, your go-to solution for all your electrical testing needs
Insulation |
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Terminal Voltage |
Range |
Max Resolution |
Accuracy |
Test Current |
Short circuit current |
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125V (0% ~ +10) |
0.125~4000MΩ |
0.001MΩ |
±(2%+10) |
1mA@load 125kΩ |
≤1mA |
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250V (0% ~ +10) |
0.250~4000MΩ |
0.001MΩ |
±(2%+10) |
1mA@load 250kΩ |
≤1mA |
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500V (0% ~ +10) |
0.500~4000MΩ |
0.001MΩ |
±(2%+10) |
1mA@load 500kΩ |
≤1mA |
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1000V (0% ~ +10) |
1.000~4000MΩ |
0.001MΩ |
±(3%+10) |
1mA@load 1MΩ |
≤1mA |
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Low OHM |
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Range |
Resolution |
Accuracy |
Max. open Circuit Voltage |
Overload Protection |
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4.000Ω |
0.001Ω |
±1.5%+30 |
5.8V |
250Vrms |
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40.00Ω |
0.01Ω |
±1.5%+3 |
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400.0Ω |
0.1Ω |
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Continuity Beeper |
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Range |
Resolution |
Operation Resistance |
Max. open Circuit Voltage |
Overload Protection |
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Continuity |
0.01Ω |
Resistance≤35Ω |
5.0V±1VDC |
250Vrms |
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Short circuit current |
≥200mA |
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LOOP Resistance |
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L-PE - Hi-Amp |
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Range - Ω |
Max. Resolution - Ω |
Accuracy |
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0.00~999 |
0.01 |
±4% of reading+6 digits |
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L-PE(No Trip): Measuring Current:15mA / Range of the Voltage Used: 195V a. c.~260V a. c. - 56, 60Hz |
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Range - Ω |
Resolution - Ω |
Accuracy |
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0.00~999 |
0.01 |
±5% of reading+6 digits |
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L-N: Measuring Current:2.0A / Range of the Voltage Used:195V a. c.~260V a. c. - 56, 60Hz |
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Range - Ω |
Max. Resolution - Ω |
Accuracy |
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0.00~999 |
0.01 |
±4% of reading+4 digits |
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RCD Testing |
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Test current |
Accuracy |
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x1/2, x1, x2, x5 |
1.5%~ -9% |
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Voltage and Frequency |
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Measurement Range (V)/ AC-DC |
Resolution |
Accuracy |
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80-500V/(45-400Hz) |
1V |
±2% of reading+2 digits |