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    Earth Resistance Tester

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    Clamp Earth Resistance Tester, 0 to 20kΩ

    $910.74
    SKU: ATO-ERT-20k
    Digital clamp earth resistance tester for sale online, especially used for measuring ground resistance, soil resistivity, ground current and ground voltage on site. Soil resistivity tester equipped with a 0 to 20kΩ measure range, 5-inch color LCD screen, USB interface charging port, storage function, clock function, and automatic stores 500 groups. Ground test with clamp meter method, two-wire method, three-wire method, and four-wire method for selection.

    Clamp Ground Resistance Tester, 0.010Ω to 1500Ω

    $998.95
    SKU: ATO-ERT-1500
    High precision clamp-on ground resistance tester is designed for ground resistance measurement, loop resistance measurement, grounding down leads leakage current measurement and judging ground fault. Digital earth testing meter provides a 0.010Ω~1500Ω measurement range, 0.00mA~40.0A current range, sound and light alarm, data storage and data retention function, which is your better choice to measure your ground resistance.

    Clamp-on Earth Resistance Tester, 0.010Ω to 200Ω

    $400.74
    SKU: ATO-ERT-200
    Low-cost digital earth resistance tester for sale online. It is equipped with a 0.010Ω-200Ω measurement range, sound and light alarm, data storage and data retention functions. Clamp on ground resistance tester is widely used in the ground resistance measurement and loop resistance measurement of electric power, telecommunications, meteorology, oil field, construction and industrial electrical equipment.

    Clamp-on Ground Resistance Tester, 0 to 200kΩ

    $1,060.25
    SKU: ATO-ERT-200k
    Get a clamp-on earth resistance tester on ATO.com for measuring grounding resistance, loop resistance, soil resistivity, voltage to ground, and grounding down conductor leakage current. Digital earth tester comes with a 0.000mA~20A current range, 0.00Ω~200kΩ measurement range, 5-inch color LCD screen, USB interface charging port, storage function and clock function is available.

    Digital Earth Resistance Tester, 0.010Ω to 1200Ω

    $627.61
    SKU: ATO-ERT-1200
    Order an earth resistance tester with a measurement range of 0.010Ω to 1200Ω on ATO.com. Earth testing meter is a clamp-on ground tester that can accurately test ground resistance, suitable for grounding system measurements in power systems, telecommunications, meteorology, oil fields and buildings.

    Digital Earth Resistance Tester, 0.010Ω to 2000Ω

    $596.41
    SKU: ATO-ERT-2000
    The digital earth resistance tester is widely used in measuring the ground resistance of electric power, telecommunications, meteorology, construction, lightning protection and industrial electrical equipment, etc. Factory ground resistance tester with a 0.010-2000 ohm, provided with a waterproof protection box, alarm value setting and alarm indication, historical data reading, consulting, saving, reporting and printing functions.

    Double Clamp Earth Resistance Tester, 0 to 300kΩ

    $1,394.17
    SKU: ATO-ERT-300k
    Multi-digital earth resistance tester provides a 0.00Ω~300kΩ range, large LCD display, a large-capacity rechargeable lithium battery pack, and a USB interface for data upload. Double clamp on ground resistance tester is suitable for measuring ground resistance, DC resistance, soil resistivity, ground current, and ground voltage. Several resistance testing methods for selection.

    Soil Resistivity Tester, 0 to 30kΩ

    $924.77
    SKU: ATO-ERT-30k
    Factory-price soil resistivity tester is designed for measuring ground resistance, soil resistivity, and ground voltage on-site. It is also a digital earth resistance tester, with a 0.00~30000Ω large range, suitable for electric power, telecommunications, meteorology, oil field, construction, lightning protection and industrial electrical equipment.

    Earth resistance tester for sale online. It is a common instrument for measuring the ground resistance and soil resistivity. ATO provides ground resistance testers for measuring resistance in the range of 0.00Ω~30kΩ. Light and compact, easy to operate, accurate and reliable, digital clamp-on ground resistance tester is designed for measuring earth resistance and loop resistance of electric power, telecommunication, meteorology, oil field, building and industrial electrical equipment. 

    What is an Earth Resistance Tester used for?

    An earth resistance tester is used to measure the resistance of an electrical grounding system, which is important for ensuring the safety and proper functioning of electrical equipment.

    How Does a Ground Resistance Tester Work?

    A ground resistance tester sends a small electrical current through the grounding system and measures the voltage drop to calculate the resistance of the system.

    Types of Earth Resistance Tester

    There are several types of ground resistance testers, including clamp-on earth resistance tester, digital earth resistance tester, double clamp earth resistance tester, stake testers, and fall-of-potential testers. Some ground resistance tests also have the function of measuring soil resistivity, which can be used as a soil resistivity tester. Each type has its own unique features and benefits.

    Advantages of Ground Resistance Tester

    Using a ground resistance tester can help you identify potential safety hazards and prevent electrical equipment from malfunctioning due to improper grounding. It can also help you comply with local electrical codes and regulations.

    How to Choose an Earth Resistance Tester?

    Choosing an earth resistance tester depends on a few factors, including your specific needs and budget. Here are some factors to consider when choosing an earth resistance tester:

    • Type of Tester: There are several types of earth resistance testers, including clamp-on testers, stake testers, and fall-of-potential testers. Each type has its own unique features and benefits. Consider which type is most suitable for your application and budget.
    • Measuring Range: Make sure that the earth resistance tester you choose has a measuring range suitable for your application. Some testers can measure resistance as low as 0.01 Ohm, while others can measure up to several thousand Ohms.
    • Accuracy: Consider the accuracy of the earth resistance tester. You may need a high-accuracy tester if you are working with sensitive equipment or applications.
    • Display: Look for an earth resistance tester with a clear and easy-to-read display. Some testers come with a backlit display, which is useful for working in low-light conditions.
    • Durability: If you will be using the earth resistance tester in harsh conditions, such as outdoors or in a construction site, consider a tester that is durable and resistant to damage.
    • Additional Features: Some earth resistance testers come with additional features such as data logging, USB connectivity, and wireless capabilities. Consider which features are important for your needs.
    • Budget: Consider your budget when choosing an earth resistance tester. The price of the tester can vary depending on the type, features, and accuracy.

    By considering these factors, you can choose an earth resistance tester that is best suited for your needs and budget. It's also a good idea to read reviews and ask for recommendations from other professionals in your field.

    What Factors can Affect Ground Resistance Measurements?

    Ground resistance measurements can be affected by factors such as the soil type, the depth of the grounding system, and the presence of nearby conductive structures.