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Model	Cat. #	Description	List Price	Quantity/Status
6471	2135.48	Ground Resistance Tester Model 6471 (no probes) NIST Calibration ($105.00 each)	$2,769.00	In stock at factory. Find a Distributor
6471	2135.49	Ground Resistance Tester Model 6471 (with probes) NIST Calibration ($105.00 each)	$3,535.00	In stock at factory. Find a Distributor
6471 Kit-300ft	2135.50	Ground Resistance Tester Model 6471 Kit-300ft (with probes) NIST Calibration ($105.00 each)	$4,239.00	In stock at factory. Find a Distributor
6471 Kit-300ft	2135.60	Ground Resistance Tester Model 6471 Kit-300 ft (no probes) NIST Calibration ($105.00 each)	$3,489.00	Consult Factory for Availability
6471 Kit-500ft	2135.61	Ground Resistance Tester Model 6471 Kit-500 ft (no probes) NIST Calibration ($105.00 each)	$3,649.00	Consult Factory for Availability

Model	6471
Cat. #	2135.48
Description	Ground Resistance Tester Model 6471 (no probes)
List Price	$2,769.00
In stock at factory. Find a Distributor

Model	6471
Cat. #	2135.49
Description	Ground Resistance Tester Model 6471 (with probes)
List Price	$3,535.00
In stock at factory. Find a Distributor

Model	6471 Kit-300ft
Cat. #	2135.50
Description	Ground Resistance Tester Model 6471 Kit-300ft (with probes)
List Price	$4,239.00
In stock at factory. Find a Distributor

Model	6471 Kit-300ft
Cat. #	2135.60
Description	Ground Resistance Tester Model 6471 Kit-300 ft (no probes)
List Price	$3,489.00
Consult Factory for Availability

Model	6471 Kit-500ft
Cat. #	2135.61
Description	Ground Resistance Tester Model 6471 Kit-500 ft (no probes)
List Price	$3,649.00
Consult Factory for Availability

Model 6471 (no probes) - Cat. #2135.48: Includes carrying bag, 110/240V power adapter with US power cord, optical USB cable, rechargeable NiMH battery, and a USB stick with DataView^® software, ground tester workbook and user manual.

Model 6471 (with probes) - Cat. #2135.49: Includes carrying bag, set of (2) SR182 current probes, 110/240V power adapter with US power cord, optical USB cable, rechargeable NiMH battery, and a USB stick with DataView^® software, ground tester workbook and user manual.

Model 6471 (300 ft Kit, with probes) - Cat. #2135.50: Includes carrying bag for kit, (2) 300 ft color-coded leads on spools (red/blue), (2) 100 ft color-coded leads (hand-tied, green/black), (2) 5 ft color-coded leads (red/blue), set of (2) SR182 current probes, 110/240V power adapter with US power cord, optical USB cable, (4) T-shaped auxiliary ground electrodes, set of (5) spaded lugs, (1) 100 ft tape measure, rechargeable NiMH battery, and a USB stick with DataView^® software, ground tester work-book and user manual.

Model 6471 (300 ft Kit, no probes) - Cat. #2135.60: Includes carrying bag for meter, carrying bag for kit, (2) 300 ft color-coded leads on spools (red/blue), (2) 100 ft color-coded leads (green/black), (2) 5 ft color-coded leads (red/blue), 110/240V power adapter with US power cord, optical USB cable, (4) T-shaped auxiliary ground electrodes, set of (5) spaded lugs, (1) 100 ft tape measure, rechargeable NiMH battery, and a USB stick with DataView^® software, ground tester work-book and user manual.

Model 6471 (500 ft Kit, no probes) - Cat. #2135.61: Includes carrying bag for meter, carrying bag for kit, (2) 500 ft color-coded leads on spools (red/blue), (2) 100 ft color-coded leads (hand-tied, green/black), (2) 5 ft color-coded leads (red/blue), 110/240V power adapter with US power cord, optical USB cable, four T-shaped auxiliary ground electrodes, set of (5) spaded lugs, (1) 100 ft tape measure, rechargeable NiMH battery, and a USB stick with DataView^® software, ground tester work-book and user manual.

4-Point Earth Resistance Measurement
Range (Auto-Ranging)	0.01 Ω to 99.99 kΩ
Resolution	(0.001 to 10) Ω
Accuracy	±(2 % Reading +1 ct)
Test Voltage	(16 or 32) V; (41 to 513) Hz
Test Current	Up to 250 mA
Selective 4-Pole (with optional probes MN82 or SR182)
Same characteristics as with 4-point earth resistance measurement
3-Point Earth Resistance Measurement
Range (Auto-Ranging)	0.09 Ω to 99.9 kΩ
Resolution	(0.01 to 100) Ω
Accuracy	±(2 % Reading +1 ct)
Test Voltage	(16 or 32) V; (41 to 513) Hz
Test Current	Up to 250 mA
Soil Resistivity 4-Point Measurement
Test method	Wenner or Schlumberger selectable with automatic calculation
Range (Auto-Ranging)	0.01 Ω to 99.9 kΩ; ρ max: 999 kΩm
Resolution	(0.01 to 100) Ω
Accuracy (Typical)	±(2 % Reading +1 ct)
Test Voltage	(16 or 32) V; (41 to 128) Hz selectable
2 Clamp Ground Measurement (with optional probes MN82 or SR182)
Range (Auto-Ranging)	(0.1 to 500) Ω
Resolution	(0.01 to 1) Ω
Measurement Frequency	Auto: 1611 Hz; Manual: 128 Hz-1367 Hz-1611 Hz-1758 Hz
DC Resistance Measurement (Bond Testing) 2-Pole (with lead resistance compensation) or 4-Pole (Kelvin sensing)
Range (Auto-Ranging)	2-pole: 0.12 Ω to 99.9 kΩ 4-pole: 0.020 Ω to 99.99 kΩ
Resolution	2 -pole: (0.01 to 100) Ω 4-pole: (0.001 to 10) Ω
Accuracy (Typical)	±(2 % Reading +2 ct)
Test Voltage	16 V DC; (+, - or auto polarity)
Test Current	Up to 250 mA
Current Measurement (with optional probes MN82 or SR182)
Range	0.01 mA to 40 A, (16 to 400) Hz
Accuracy (Typical)	±(3 % Reading +2 ct) typical
External Voltage Measurement
Range	(0.1 to 65) V AC/DC – DC, (15 to 440) Hz
Accuracy	±(2 % Reading +1 ct)
General Features
Memory	512 measurements (64 KB)
Communication	USB 2.0 optically isolated, DataView software included
Power Source	9.6 V rechargeable battery pack with external 110/220 V charger
Battery Life	1500 tests typical in automatic mode
Dimensions	(10.7 x 9.80 x 5.12) in (272 x 248 x 130) mm
Weight	7 lb (3.2 kg) with battery
Case	UL V0 Polypropylene
Operating Temperature	(32 to 113) °F (0 to +5) °C
Storage Temperature	(-40 to 158) °F (-40 to 70) °C
Relative Humidity	Up to 90 % RH
Ingress Protection (IP)	IP 53 with cover closed
EMC	EN 61326-1
Safety Compliance	IEC 61010-1, EN 61557, 50 V CAT IV, Pollution Degree 2

Medidor de resistencia de tierra modelo 6471 (juego de dos sondas amperimétricas SR182, 2 puntos, 3 puntos, 4 puntos, prueba de conexión, digital) - Español

Modelo 6471 - Español

Kit del medidor de resistencia de tierra modelo 6471 – 90 m (300 pies) (catálogo Nº 2135.48 y catálogo Nº 2135.36) - Español

Kit del medidor de resistencia de tierra modelo 6471 – 150 m (500 pies) (catálogo Nº 2135.48 y catálogo Nº 2135.37) - Español

Comparison Charts

Ground Tester Comparison Chart - English

Tabla de Selección de Medidores de Tierra - Español

Workbooks

Understanding Ground Resistance - English

Understanding Ground Resistance - Español

Technical Bulletins

Watts Current Issue 08

Troubleshooting

Model 6470B-6471-6472 Error Messages

Videos

Choosing the Right Ground Resistance Tester

Understanding Ground Resistance Testing

Model	Cat. #	Description	List Price	Quantity/Status
	2117.76	Bag - Small Flat Black Canvas Bag for Ground/Accessories Dimensions: 17 x 6.5 x 2.75"	$41.00
	2119.82	Multi-purpose Large Canvas Bag Dimensions: 22 x 10.5 x 12"	$166.00
	2130.60	100 ft Tape Measure for use with Ground Resistance Tester Kits	$45.00
	2135.35	Ground Resistance Test Kit for 3-Point Testing - 150ft Test Kit for 3-Point Testing, Kit (Carrying Bag, [2] 150 ft Color-coded Leads on Spools (Red/Blue), [1] 30 ft Lead (Green), [2] 5 ft Color-coded Leads (Red/Blue), [2] 14.5" T-shaped Auxiliary Ground Electrodes, [1] Set of 5, Spaded Lugs and [1] 100 ft AEMC® Tape Measure)	$595.00
	2135.36	Ground Resistance Test Kit for 4-Point Testing - 300ft Test Kit for 4-Point Testing, Kit (Carrying Bag, [2] 300 ft Color-coded Leads on Spools (Red/Blue), [2] 100 ft Color-coded Leads (hand tied-Green/Black), [2] 5 ft Color-coded Leads (Red/Blue), [4] 14.5" T-shaped Auxiliary Ground Electrodes, [1] Set of 5, Spaded Lugs and [1] 100 ft AEMC® Tape Measure)	$760.00
	2135.37	Ground Resistance Test Kit for 4-Point Testing - 500ft Test Kit for 4-Point Testing, Kit (Carrying Bag, [2] 500 ft Color-coded Leads on Spools (Red/Blue), [2] 100 ft Color-coded Leads (hand tied-Green/Black), [1] 30 ft Lead (Green), [2] 5 ft Color-coded Leads (Red/Blue), [4] 14.5" T-shaped Auxiliary Ground Electrodes, [1] Set of 5, Spaded Lugs and [1] 100 ft AEMC® Tape Measure)	$890.00	Consult Factory for Availability
	2135.38	Test Kit for 3-Point testing (supplemental for 4-Point testing) - includes two 100 ft color-coded leads (hand tied - green and black), one 30 ft lead (green) and two 14.5" T-shaped auxiliary ground electrodes and carrying bag.	$278.00
	2135.39	Set of 2, 14.5" T-shaped Ground Rods for use with all Ground Testers (except clamp-ons)	$49.00
	2135.40	Bag - Replacement Carrying Bag for Models 6470/6470-B, 6471 & 6472	$95.00
	2135.41	Optical USB Cable – Replacement for Models 6240, 6470/6470-B, 6471, 6472, 6550 ,6555, 8220, 8230 & MTX 328x Series	$71.50
MN82	2135.71	AC Current Probe Model MN82 NIST Calibration ($68.00 each)	$350.00	Consult Factory for Availability
SR182	2135.72	AC Current Probe Model SR182 NIST Calibration ($68.00 each)	$495.00
	2135.81	Fuse - Set of 5, 0.63A, 250V (5 x 10mm) for Models 6470-B, 6471 and 6472	$12.50
	2135.85	Set of 2 reel caddies for use with ground kit spools	$126.00
	2960.21	Replacement 9.6V Rechargeable Battery Pack for Models 1060, 5050, 5060, 5070, 6505, 4630, 6470/6470-B, 6471 & 6472	$195.00
	5000.01	Green replacement wire (30 ft hand-tied) for ground resistance tester kits	$33.00
	5000.02	Red replacement wire (500 ft) on reel for ground resistance tester kits (models 4620, 4630, 6470-B, 6471 & 6472)	$229.00
	5000.03	Red replacement wire (300 ft) on reel for ground resistance tester kits (models 4620, 4630, 6470-B, 6471 & 6472)	$195.00	Consult Factory for Availability
	5000.04	Red replacement wire (150 ft) on reel for ground resistance tester kits (models 3620, 3640, 4620, 4630, 6422 & 6424)	$154.00
	5000.05	Blue replacement wire (500 ft) on reel for ground resistance tester kits (models 4620, 4630, 6470-B, 6471 & 6472)	$229.00	Consult Factory for Availability
	5000.06	Blue replacement wire (300 ft) on reel for ground resistance tester kits (models 4620, 4630, 6470-B, 6471 & 6472)	$195.00
	5000.07	Blue replacement wire (150 ft) on reel for ground resistance tester kits (models 3620, 3640, 4620, 4630, 6422 & 6424)	$154.00
	5000.08	Green replacement wire (100 ft hand-tied) for ground resistance tester kits	$108.00
	5000.09	Black replacement wire (100 ft hand-tied) for ground resistance tester kits	$108.00
	5000.10	Set of 5, replacement screw-on spaded lugs for ground resistance tester kits	$16.50
	5000.13	Power adapter 110/240V and power cord 115V US for ground tester models 6470, 6471 and 6472	$115.50
	5000.14	Power cord 115V for Micro-ohmmeters, Megohmmeters, Power Instruments, Oscilloscopes & Ground Testers	$10.50
	5000.18	Empty replacement reel for ground kits (holds up to 500ft of wire) Outer Ø: 7.5" - Inner Ø: 3.75" - Width: 4.56"	$23.25
	5000.34	Lead - set of 2, color-coded (red/blue) leads for use with AEMC® ground tester reels incorporating banana jack input	$25.00
	5000.57	Power adapter, 24VDC charger (vehicle use) for models 6470-B, 6471 and 6472	$159.00
	5000.74	Ground resistance calibration checker - 5/25Ω for use with Models 6470/6470-B, 6471, and 6472	$199.00
	5100.02	Latches - Replacement set of 2 for use with AEMC Yellow cases	$13.25

Model
Cat. #	2117.76
Description	Bag - Small Flat Black Canvas Bag for Ground/Accessories Dimensions: 17 x 6.5 x 2.75"
List Price	$41.00

Model
Cat. #	2119.82
Description	Multi-purpose Large Canvas Bag Dimensions: 22 x 10.5 x 12"
List Price	$166.00

Model
Cat. #	2130.60
Description	100 ft Tape Measure for use with Ground Resistance Tester Kits
List Price	$45.00

Model
Cat. #	2135.35
Description	Ground Resistance Test Kit for 3-Point Testing - 150ft Test Kit for 3-Point Testing, Kit (Carrying Bag, [2] 150 ft Color-coded Leads on Spools (Red/Blue), [1] 30 ft Lead (Green), [2] 5 ft Color-coded Leads (Red/Blue), [2] 14.5" T-shaped Auxiliary Ground Electrodes, [1] Set of 5, Spaded Lugs and [1] 100 ft AEMC® Tape Measure)
List Price	$595.00

Model
Cat. #	2135.36
Description	Ground Resistance Test Kit for 4-Point Testing - 300ft Test Kit for 4-Point Testing, Kit (Carrying Bag, [2] 300 ft Color-coded Leads on Spools (Red/Blue), [2] 100 ft Color-coded Leads (hand tied-Green/Black), [2] 5 ft Color-coded Leads (Red/Blue), [4] 14.5" T-shaped Auxiliary Ground Electrodes, [1] Set of 5, Spaded Lugs and [1] 100 ft AEMC® Tape Measure)
List Price	$760.00

Model
Cat. #	2135.37
Description	Ground Resistance Test Kit for 4-Point Testing - 500ft Test Kit for 4-Point Testing, Kit (Carrying Bag, [2] 500 ft Color-coded Leads on Spools (Red/Blue), [2] 100 ft Color-coded Leads (hand tied-Green/Black), [1] 30 ft Lead (Green), [2] 5 ft Color-coded Leads (Red/Blue), [4] 14.5" T-shaped Auxiliary Ground Electrodes, [1] Set of 5, Spaded Lugs and [1] 100 ft AEMC® Tape Measure)
List Price	$890.00
Consult Factory for Availability

Model
Cat. #	2135.38
Description	Test Kit for 3-Point testing (supplemental for 4-Point testing) - includes two 100 ft color-coded leads (hand tied - green and black), one 30 ft lead (green) and two 14.5" T-shaped auxiliary ground electrodes and carrying bag.
List Price	$278.00

Model
Cat. #	2135.39
Description	Set of 2, 14.5" T-shaped Ground Rods for use with all Ground Testers (except clamp-ons)
List Price	$49.00

Model
Cat. #	2135.40
Description	Bag - Replacement Carrying Bag for Models 6470/6470-B, 6471 & 6472
List Price	$95.00

Model
Cat. #	2135.41
Description	Optical USB Cable – Replacement for Models 6240, 6470/6470-B, 6471, 6472, 6550 ,6555, 8220, 8230 & MTX 328x Series
List Price	$71.50

Model	MN82
Cat. #	2135.71
Description	AC Current Probe Model MN82
List Price	$350.00
Consult Factory for Availability

Model	SR182
Cat. #	2135.72
Description	AC Current Probe Model SR182
List Price	$495.00
NIST Calibration ($68.00 each)

Model
Cat. #	2135.81
Description	Fuse - Set of 5, 0.63A, 250V (5 x 10mm) for Models 6470-B, 6471 and 6472
List Price	$12.50

Model
Cat. #	2135.85
Description	Set of 2 reel caddies for use with ground kit spools
List Price	$126.00

Model
Cat. #	2960.21
Description	Replacement 9.6V Rechargeable Battery Pack for Models 1060, 5050, 5060, 5070, 6505, 4630, 6470/6470-B, 6471 & 6472
List Price	$195.00

Model
Cat. #	5000.01
Description	Green replacement wire (30 ft hand-tied) for ground resistance tester kits
List Price	$33.00

Model
Cat. #	5000.02
Description	Red replacement wire (500 ft) on reel for ground resistance tester kits (models 4620, 4630, 6470-B, 6471 & 6472)
List Price	$229.00

Model
Cat. #	5000.03
Description	Red replacement wire (300 ft) on reel for ground resistance tester kits (models 4620, 4630, 6470-B, 6471 & 6472)
List Price	$195.00
Consult Factory for Availability

Model
Cat. #	5000.04
Description	Red replacement wire (150 ft) on reel for ground resistance tester kits (models 3620, 3640, 4620, 4630, 6422 & 6424)
List Price	$154.00

Model
Cat. #	5000.05
Description	Blue replacement wire (500 ft) on reel for ground resistance tester kits (models 4620, 4630, 6470-B, 6471 & 6472)
List Price	$229.00
Consult Factory for Availability

Model
Cat. #	5000.06
Description	Blue replacement wire (300 ft) on reel for ground resistance tester kits (models 4620, 4630, 6470-B, 6471 & 6472)
List Price	$195.00

Model
Cat. #	5000.07
Description	Blue replacement wire (150 ft) on reel for ground resistance tester kits (models 3620, 3640, 4620, 4630, 6422 & 6424)
List Price	$154.00

Model
Cat. #	5000.08
Description	Green replacement wire (100 ft hand-tied) for ground resistance tester kits
List Price	$108.00

Model
Cat. #	5000.09
Description	Black replacement wire (100 ft hand-tied) for ground resistance tester kits
List Price	$108.00

Model
Cat. #	5000.10
Description	Set of 5, replacement screw-on spaded lugs for ground resistance tester kits
List Price	$16.50

Model
Cat. #	5000.13
Description	Power adapter 110/240V and power cord 115V US for ground tester models 6470, 6471 and 6472
List Price	$115.50

Model
Cat. #	5000.14
Description	Power cord 115V for Micro-ohmmeters, Megohmmeters, Power Instruments, Oscilloscopes & Ground Testers
List Price	$10.50

Model
Cat. #	5000.18
Description	Empty replacement reel for ground kits (holds up to 500ft of wire) Outer Ø: 7.5" - Inner Ø: 3.75" - Width: 4.56"
List Price	$23.25

Model
Cat. #	5000.34
Description	Lead - set of 2, color-coded (red/blue) leads for use with AEMC® ground tester reels incorporating banana jack input
List Price	$25.00

Model
Cat. #	5000.57
Description	Power adapter, 24VDC charger (vehicle use) for models 6470-B, 6471 and 6472
List Price	$159.00

Model
Cat. #	5000.74
Description	Ground resistance calibration checker - 5/25Ω for use with Models 6470/6470-B, 6471, and 6472
List Price	$199.00

Model
Cat. #	5100.02
Description	Latches - Replacement set of 2 for use with AEMC Yellow cases
List Price	$13.25

By Industry

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Ground Resistance Tester Model 6471 (Digital 3- and 4- Point)

User Manuals

Datasheets

Brochures

Comparison Charts

Application Notes

Workbooks

Forms

Calculators

Technical Bulletins

Troubleshooting

Videos

Choosing the Right Ground Resistance Tester

Understanding Ground Resistance Testing

Ground Resistance Tester
Model 6471 (Digital 3- and 4- Point)