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REED R5700 Clamp-On Ground Resistance Tester

Model: R5700

REED R5700 Clamp-On Ground Resistance Tester-

Downloads: manual datasheet
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Enables non-contact measurements of ground conductors without the need for auxiliary ground spikes.

REED R5700 Offers

This auto ranging earth resistance clamp meter measures ground resistance and leakage current. The R5700 has internal memory capable of storing up to 99 measurements, allow for a user to set alarm thresholds and features a double molded conductor clamp for added protection.


  • Auto-ranging ground resistance and leakage current measurements
  • 0.001Ω resolution for low resistance measurements
  • 9999-count backlit LCD display
  • Internal memory stores up to 99 readings
  • User adjustable alarms
  • Data hold function
  • Durable double molded conductor clamp
  • 1.26" (32mm) jaw size for large ground rods
  • Low battery indicator and auto shut off
  • Cat. III 300V safety rating

REED R5700 Specifications

Ground Resistance
Ranges 0.010 to 0.099Ω
0.10 to 0.99Ω
1.0 to 49.9Ω
50.0 to 99.5Ω
100 to 199Ω
200 to 395Ω
400 to 590Ω
600 to 880Ω
900 to 1200Ω
Accuracy 0.010 to 0.099Ω: ±(1% +0.01Ω)
0.10 to 0.99Ω: ±(1% +0.01Ω)
1.0 to 49.9Ω: ±(1% +0.1Ω)
50.0 to 99.5Ω: ±(1.5% +0.5Ω)
100 to 199Ω: ±(2% +1Ω)
200 to 395Ω: ±(5% +5Ω)
400 to 590Ω: ±(10% +10Ω)
600 to 880: ±(20% +20Ω)
900 to 1200Ω: ±(25% +30Ω)
Resolution 0.001Ω


Ranges 0 to 9.95A
10 to 99mA
100 to 300mA
0.30 to 2.99A
3 to 9.9A
10 to 30A
Accuracy 0 to 9.95A: ±(2.5% +1mA)
10 to 99mA: ±(2.5% +5mA)
100 to 300mA: ±(2.5% 10mA)
0.30 to 2.99A: ±(2.5% +0.1A)
3 to 9.9A: ±(2.5% +0.3A)
10 to 30A: ±(2.5% +0.5A)
Resolution 0.5mA, 0.1mA, 1mA, 0.01A, 0.1A, 0.1A
General Specifications
Range Selection Autoranging
Sampling Time 0.5s
Display 9,999 count LCD display
Backlit LCD Yes
User Selectable Alarms Yes
Display Hold Yes
Internal Memory Yes up to 99 data points
Autoshut off Yes (after 5 mins)
Power Supply 4 "AA" Batteries
Over Range Indicator Yes
Low Battery Indicator Yes
Jaw Opening 1.26" (32mm)
Overvoltage Category CAT. III 300V
Product Certifications CE, RoHS
Operating Temperature 32 to 131°F (0 to 55°C)
Operating Humidity 10 to 90%
Storage Temperature -4 to 140°F (-20 to 60°C)
Dimensions 11.2 x 3.3 x 2.2" (285 x 85 x 56 mm)
Weight 2.6lbs (1160g)

What's included with the REED R5700

  • R5700 Ground Resistance Tester
  • 2 Resistance Calibration Loops (1Ω and 10Ω)
  • Batteries
  • Hard Carrying Case

Ideal Applications for the REED R5700

  • Ground resistance of lightning arrestors
  • Electrical distribution equipment
  • Telecommunication systems
  • Oil field equipment
  • Gas station installations
Calibration Lab
When you purchase a REED product it comes included with a one year warranty. We back our products.