Description
DET3TD/ Digital earth resistance tester
About the product
- 2 and 3 point testing
- Selectable 25 V or 50 V output
- IP54 rated
- Complete with leads, stakes and rugged carry case
- Simple one-button operation
- Calibration test certificate included
- Optional earth testing kit (ETK) available
The DET3TD Digital earth resistance tester is ideal for basic requirements as it provides digital ground testing and bond test capabilities. Similar to the DET3TC, this instrument comes with a complete kit: instrument, test leads, stakes, batteries, calibration certificate, and a tough polypropylene carry case.

As with the DET3TC, the DET3TD is easy to use, with the earth rod tester rated to IP54, making it a hardy outdoor instrument. Using the optional clamp around the earth rod connection allows the testing of the rod without the need for disconnection, leaving the earthing system intact during testing (ART). A large, clear, easy-to-read LCD display and thumb-sized test button also makes the instrument particularly suited outdoor conditions.
In addition to its ease of use, the DET3TD (and the DET3TC) also automatically checks the connection and condition of the P and C spike, indicating the status on the display. The instrument also includes a voltmeter to allow you to measure the ground voltage and can measure resistance from 0.01 Ω through to 2000 Ω and earth voltages up to 100 V. To allow accurate testing in noisy environments, this earth resistance tester is capable of rejecting noise of up to 40 V peak to peak.V
Q1. What is the Megger DET3TD?
The Megger DET3TD is a digital earth resistance tester designed for testing earth/ground resistance in electrical grounding systems.
Q2. What is the Megger DET3TD used for?
It is used to measure earth resistance and help verify the effectiveness of grounding systems in electrical installations.
Q3. Who can use the DET3TD Earth Resistance Tester?
It is suitable for electrical engineers, electricians, contractors, maintenance teams, testing professionals and industrial users.
Q4. Why is earth resistance testing important?
Earth resistance testing helps assess the performance of a grounding system and supports electrical safety and maintenance procedures.
Q5. Can the DET3TD be used for electrical grounding system testing?
Yes. The DET3TD is designed for earth resistance testing of suitable electrical grounding and earthing systems.
Q6. Is the Megger DET3TD a digital earth tester?
Yes. The DET3TD is a digital earth resistance tester intended for professional earth/ground resistance measurements.
Q7. Where can the Megger DET3TD be used?
It can be used in industrial facilities, electrical installations, commercial buildings, power systems and maintenance applications, according to the applicable testing procedure.
Q8. What is the difference between an earth resistance tester and an insulation tester?
An earth resistance tester measures the resistance of a grounding/earthing system, while an insulation tester measures the resistance of electrical insulation.
Q9. Is the DET3TD suitable for professional electrical testing?
Yes. It is designed for professional earth resistance testing and grounding-system maintenance applications.
Q10. Where can I buy the Megger DET3TD in India?
You can contact Shiv Shakti Infosys for product availability, quotation and technical assistance for the Megger DET3TD.





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