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Amprobe TELARIS EARTH-TEST Earth Resistance Tester

5.0 out of 5 stars 1 customer review

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  • Ground resistance meter to measure earth ground resistance to evaluate system safety
  • Automatic and manual frequency selection for noise reduction
  • Selectable 25 or 50V AC test voltage with 12mA test current
  • Measures earth resistance from 0 to 1,999 ohms
  • Safety rated to European Standard EN 61010-1 Category III 300V
  • Earth resistance measurement 2/3 and 4-pole
  • Specific earth resistance measurement in compliance with the Wenner principle
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Technical Details

  • Brand Name: Amprobe
  • Part Number: 3087226
  • UPC: 095969436199

Product Description

The Amprobe Telaris EARTH-TEST ground resistance meter measures earth ground resistance to evaluate the safety and integrity of electrical systems. Automatic and manual frequency selection reduces electromagnetic noise. The tester uses a selectable 25 or 50V alternating current (AC) test voltage and a 12mA maximum test current. The unit measures earth resistance from 0 to 1,999 ohms. It is safety rated to European Standard EN 61010-1, Category III 300V. It is powered by six alkaline or rechargeable AA batteries and has an auto-off function. The EARTH-TEST is designed for use by electricians and electrical contractors.


Power supply (6) AA batteries
Ground resistance range 0 to 1,999 ohms
Test voltage range 25 or 50V AC
Test current range <12mA
Weight (including batteries) 640g/1.4 lb.
Safety standards met International Electrotechnical Commission (IEC)/European Standards (EN) 61010-1 Cat III 300V
Dimensions 235 x 105 x 68mm/9.3 x 4.1 x 2.7 inches (H x W x D)

H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Electrical test meters report electrical circuit properties, such as voltage, resistance, capacitance, and continuity. Available in handheld or benchtop form, they detect electrical problems in equipment, wiring, and power supplies. A variety of probes, clamps, and leads can be used to connect the meter to a circuit or device. Single-function meters, such as battery testers and voltage testers, measure one property of a circuit, and multimeters measure multiple properties. Electrical test meters display information either in analog form using a needle that moves on a calibrated scale, or in digital form using digits or a graphic representation on an LED screen. Meters have electrical properties that are to be measured and the anticipated range of results, and should have a rating that is higher than the maximum value of the anticipated range. An electrical test meter has multiple settings corresponding to potential ranges of values for the properties it can measure. A manual ranging meter requires the operator to flip through different settings until the correct range is reached. An autoranging meter cycles through range settings automatically until it reaches the correct range.

Amprobe manufactures electrical testing equipment for commercial, industrial, and home use. The company was founded in 1948 and is headquartered in Everett, WA.

What’s in the Box?

  • Telaris EARTH-TEST Earth Resistance Tester
  • Connection Cables
  • Carrying case
  • (6) AA batteries (installed)
  • Instructions

Product Information

Technical Details

Part Number 3087226
Item Weight 3.8 pounds
Product Dimensions 15.1 x 11.2 x 4.2 inches
Item model number EARTH-TEST
Item Package Quantity 1
Temperature Range -10/60 degrees_celsius
Display Style Liquid Crystal Display (LCD)
Batteries Included? Yes
Batteries Required? Yes
Warranty Description Two Year Limited Warranty

Additional Information

Customer Reviews
5.0 out of 5 stars 1 customer review

5.0 out of 5 stars
Best Sellers Rank #1,522,954 in Home Improvements (See top 100)
#62 in Home Improvement > Electrical > Testers > Resistance Meters > Ground Resistance Meters
#174,368 in Automotive > Tools & Equipment
#650,479 in Electronics > Computers & Accessories
Shipping Weight 3.8 pounds
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item is not eligible for international shipping. Learn More
Date First Available September 25, 2009

Warranty & Support

Product Warranty: For warranty information about this product, please click here


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Verified Purchase
This instrument is very rugged and easy to use, I purchase this item with the soft carrying case that have enough internal space to hold the cable sets and a spare battery pack. Also the user manual is very easy to understand for making the measurements in a consistent way.
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