What is the Extech GRT300 Four Wire Earth Ground Resistance Tester used for?

The Extech GRT300 is designed for measuring the resistance of grounding systems in electrical installations. This device is crucial for ensuring that grounding systems provide adequate protection against electrical faults. It allows professionals to assess ground resistance for safety compliance, installation verification, and maintenance checks. For instance, electricians can use it during the installation of new grounding systems or when troubleshooting existing ones to prevent electrical hazards.

How does the Extech GRT300 measure earth ground resistance?

The GRT300 utilizes a four-wire testing method, which significantly improves accuracy by eliminating the impact of lead resistance. In this configuration, two leads are responsible for injecting current into the ground, while the other two measure the voltage drop. This ensures a precise reading of the ground resistance. For example, this method is particularly useful in environments where ground resistance needs to be monitored closely, such as in industrial settings.

What is the maximum resistance reading of the Extech GRT300?

The Extech GRT300 can measure up to 2000 ohms, providing a broad range for testing various grounding systems. This capacity makes it suitable for different applications, from residential electrical systems to large commercial installations. Electrical engineers often rely on this range when assessing grounding systems, particularly in complex or extensive installations where higher resistance readings may occur.

Does the GRT300 provide any additional features apart from resistance measurement?

Yes, the Extech GRT300 features a built-in memory for storing measurement data, which can be crucial for later analysis and reporting. Additionally, it includes a fault indicator to help identify potential issues during testing. These features make the GRT300 not only effective but also convenient for professionals who need to document their findings and share results with clients or stakeholders.

Can the Extech GRT300 be used for testing in adverse weather conditions?

The Extech GRT300 is built to be robust and is designed for outdoor use, allowing it to function in various weather conditions. However, whenever possible, it is advisable to ensure dry conditions for optimal performance. Electricians often find it ideal for testing grounding systems on outdoor installations, such as telecommunications towers or electrical substations, ensuring continuous safety compliance.

What type of batteries does the Extech GRT300 use?

The GRT300 operates on six AA batteries, providing portability and convenience for field tests. This battery setup allows technicians to test ground resistance without needing an external power source, making it flexible for onsite measurements. For example, when performing periodic assessments of grounding systems in remote locations, the reliance on batteries enhances operational efficiency.

What safety features does the Extech GRT300 include?

The Extech GRT300 is equipped with safety features such as a voltage display that shows if there is a dangerous voltage present before testing begins. This function is critical to ensure user safety, preventing accidental electric shocks. Technicians often conduct preliminary checks using this feature to ensure a safe working environment, especially in high-voltage areas.

How portable is the Extech GRT300 for field use?

The Extech GRT300 is compact and lightweight, making it highly portable for field use. Its design is optimized for easy transportation, allowing electricians to carry it between job sites without hassle. This portability is particularly beneficial for professionals who perform multiple grounding tests in a day across various locations, as it simplifies their workflow.

What are the common applications for the GRT300?

The Extech GRT300 is commonly used in various applications, including electrical installation work, maintenance checks in commercial buildings, and safety inspections in industrial plants. It's also utilized in telecommunication sites and renewable energy installations like solar farms. By ensuring that grounding systems are functional, this device plays a critical role in maintaining safety standards in different sectors.

Where can I buy the Extech GRT300 Four Wire Earth Ground Resistance Tester?

You can purchase the Extech GRT300 Four Wire Earth Ground Resistance Tester through Ubuy in New Zealand. Ubuy offers a comprehensive selection of electrical testing equipment, ensuring you have access to quality tools for your professional needs.

Is Extech GRT300 4-Wire Earth Ground Resistance Tester Available to Shop Online in New Zealand?

Yes, at Ubuy New Zealand this product is available for you to shop at a reasonable price. The Extech GRT300 4-Wire Earth Ground Resistance Tester is not available locally but you can trust us with our express shipping services.

How Long Does It Take to Get Product After Placing the Order?

The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

Extech

Measures earth ground in 4 ranges from 2 to 2000 Ohm

Extech

Item #: 37665590

Extech GRT300 4-Wire Earth Ground Resistance Tester

88% of respondents would recommend this to a friend

Item #: 37665590

NZD 2181

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

^{*All items will import from US}

Availability : In stock

Imported from USA store

QTY:

Order now and get it around Sunday, September 27

Secured transaction

Our Top Logistics Partners

Measures earth ground in 4 ranges from 2 to 2000 Ohm

U-Care Warranty:

None

Select a Plan

Buy Now Pay Later

Fast
Shipping

Free
Return^*

Secure Packaging

100% Original Products

PCI DSS Compliance

ISO 27001 Certified

Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Four-Wire Test Method

Ensures accurate measurements by eliminating interference from cable resistance, critical for professional assessments of earth grounding systems.

Wide Measurement Range

Capable of measuring from 0.01Ω to 2000Ω, making it versatile for various grounding applications and meeting diverse testing requirements.

User-Friendly Design

Features a large, easy-to-read display and intuitive controls, streamlining the testing process for both seasoned professionals and novices alike.

Product Details

Measures earth ground in 4 ranges from 2 to 2000 Ohm
Allows 4-wire, 3-wire, and 2-wire testing
Features a large dual line LCD
Includes automatic I (current) and P (potential) spike check
Equipped with Test Hold function for easy operation
Comes with Autoranging, Automatic Zero adjustment, Data Hold, and Auto Power off

Power Source	Battery Powered
Measurement Type	Ohmmeter
Style Name	4-Wire Earth Ground Resistance/Resistivity Tester
Color	Black
Item Weight	1.43 Kilograms
Item Dimensions	9.8 x 7.8 x 4.3 inches (24.9 x 19.8 x 10.9 cm)
Specification Met	CE
Brand Name	Extech
Model	GRT300
UPC	793950383018
Manufacturer	Extech
Global Trade Identification Number	00793950383018
Part Number	GRT300
Included Components	Test leads with alligator clips, 4 earth bars, case, 8 1.5V AA batteries
Brand	Extech
Style	4-Wire Earth Ground Resistance/Resistivity Tester

Who Should Buy?

Electricians
Ideal for electricians needing accurate ground resistance measurements for compliance and safety in installations.
Ground Testing
Useful for professionals conducting regular ground testing in residential and commercial properties to ensure safety.
Utility Workers
Designed for utility workers who require reliable testing tools for maintaining and troubleshooting ground systems.

Casual Users
Not suitable for casual users who don’t require specialized ground resistance testing capabilities.

Product Description

Extech GRT300 4-Wire Earth Ground Resistance Tester

Have any Query? Chat with us

Customer Questions & Answers

Question: How to Shop Extech GRT300 4-Wire Earth Ground Resistance Tester Online From Ubuy?

Answer: It’s easy to shop Extech GRT300 4-Wire Earth Ground Resistance Tester online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location.
Question: Is Extech GRT300 4-Wire Earth Ground Resistance Tester Available to Shop Online in New Zealand?

Answer: Yes, at Ubuy New Zealand this product is available for you to shop at a reasonable price. The Extech GRT300 4-Wire Earth Ground Resistance Tester is not available locally but you can trust us with our express shipping services.
Question: How Long Does It Take to Get Product After Placing the Order?

Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

Extech Ground Resistance Meters Editorial Review

Extech GRT300 4-Wire Earth Ground Resistance Tester is an advanced, battery-powered device designed for accurate ground resistance measurements. This ohmmeter operates with a minimum voltage of 40 volts AC, making it suitable for various testing environments. It weighs 1.43 kg and has compact dimensions for easy handling. Users appreciate that it comes with essential accessories like test leads and alligator clips, enhancing usability. This model is CE certified, ensuring that it meets international safety standards, which adds to its credibility. Moreover, the device's robustness in measuring resistivity makes it a preferred choice among professionals seeking reliable results.

Customer Reviews & Ratings

5.0

1 customers ratings

5 Star

100%
4 Star

0%
3 Star

0%
2 Star

0%
1 Star

0%

Review this product

Share your thoughts with other customers

Pros

Battery powered for convenient portability
Measures ground resistance accurately
Includes test leads and alligator clips
Compact design for easy handling
CE certification for safety standards

Cons

Some users prefer additional features for advanced testing

Product Price History

Important information

Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

NZD 2181

Order now and get it around Sunday, September 27

QTY:

Secured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners

Fastest cross-border delivery

Features & Benefits

Measures earth ground resistance in multiple ranges
Includes 4-wire, 3-wire, and 2-wire testing
Features large dual line LCD
Automatic I and P spike check
Test Hold function for easy operation
Autoranging, Automatic Zero adjustment, Data Hold, and Auto Power off

Ubuy Assurance

Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns ^*, and secure packaging on every order.

Extech GRT300 4-Wire Earth Ground Resistance Tester

NZD 2181

Buy Now Pay Later

Fast Shipping

Free Return*

Secure Packaging

100% Original Products

PCI DSS Compliance

ISO 27001 Certified

What Stands Out

Product Details

Who Should Buy?

Product Description

Customer Questions & Answers

Extech Ground Resistance Meters Editorial Review

Customer Reviews & Ratings

Review this product

Pros

Cons

Product Price History

Important information

NZD 2181

Features & Benefits

Ubuy Assurance

Fast
Shipping

Free
Return^*