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4-Wire Earth Ground Resistance Tester

Extech GRT300

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The GRT300 measures earth ground in 4 ranges from 2 to 2000 Ohm. 4-wire, 3-wire, and 2-wire testing. Large dual line LCD. Automatic I (current) and P (potential) spike check. Test Hold function for easy operation. Autoranging, Automatic Zero adjustment, Data Hold and Auto Power off. AC Earth Voltage. Overrange and low battery indication. Complete with test leads with alligator clips, 4 auxiliary earth bars, hard carrying case, and eight 1.5V AA batteries.

$869.00
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Specifications
General Specifications
Earth Ground Resistance
2Ω/20Ω/200Ω/2000Ω
Earth Ground Resistance Basic Accuracy
±(2% of reading + 3 digits)
Earth Ground Resistance Max Resolution
0.01Ω/0.1Ω/1Ω/0.01kΩ
Earth Voltage
0 to 300VAC (40 to 500Hz frequency)
Earth Voltage Basic Accuracy
±(2% of reading + 3 digits)
Test Current
<2mA
Test Frequency
820Hz
Additional Details
Certifications
CE
Dimensions
9.8 × 7.8 × 4.3" (250 × 190 × 110mm)
Power
8 × AA (1.5V) batteries
Safety Category
CATIV - 300V
Warranty
2 years
Weight
3.15lbs (1430g)
Related Documents
Export Restrictions

Export Restrictions

The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.

Extech GRT300

$869.00

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Returns and Shipping Information for Orders Placed on FLIR Websites

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We offer a 30-day return policy on all products, no questions asked. Your order confirmation will contain instructions on how to contact our Customer Care team to initiate the return.

shipping time cut-offs

Orders placed Monday-Friday before 12:00 PM (noon) EST will likely ship the same day. All other orders will ship the next business day.

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