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Amprobe TELARIS EARTH-TEST Earth Resistance Tester

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Specifications for this item
Number of Items
Overall Height
33  millimeters
Overall Width
69.85  millimeters
Part Number
Temperature Range
-10/60  Degrees Celsius
Brand Name
Two Year Limited Warranty
Liquid Crystal Display (LCD)
Overall Length
175  millimeters

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Key Features

  • Earth resistance measurement 2/3 and 4-pole
  • Specific earth resistance measurement in compliance with the Wenner principle
  • Clear and large LCD providing the user with an optimum visual indication of both test values and limits
  • Monitoring and display of auxiliary earth and probe resistances
  • Overvoltage category: CAT III / 300 V
  • 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

Package Details

Shipping Weight: 3.75 pounds
Package Size: 15.1 x 11.2 x 4.2 inches

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

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