REED MS2301 Clamp-on Ground Resistance Tester
Model: MS2301
Enables non-contact measurements of ground conductors without the need for auxiliary ground spikes.
Sorry! This product has been discontinued.
The REED MS2301 Clamp-on Ground Resistance Tester has been discontinued, it has been replaced by the REED R5700 Clamp Ground Resistance Tester
REED MS2301 Offers
This autoranging earth resistance clamp meter measures ground resistance and leakage current. The MS2301 has internal memory capable of storing up to 99 measurements and features a double molded conductor clamp for added protection. Includes resistance calibration loop for quick on-site verification.
Features
- Autoranging ground resistance and leakage current measurements
- 0.001Ω resolution for low resistance measurements
- Basic accuracy of ± 0.01Ω
- Internal memory stores up to 99 readings
- User adjustable alarm threshold
- Display hold function
- Durable double molded conductor clamp
- 1.2" (30mm) jaw size for large ground rods
- Low battery indicator and auto shut off
- Cat. III 600V safety rating
Key Features
- Accuracy of ± 0.01Ω
- User selectable alarm threshold from 1 to 100Ω
- Limit alarm
- Measures leakage current to 1mA and neutral current to 20A
- 1 second sampling time
- 3-3/4 digit, 2000-count LCD with display Hold
- Autoranging
- Doubly insulated conductor clamp for extra security
- Large jaws open to 1.8 x 1.3"/45 x 32mm
- Includes hard carrying case and batteries
Specifications
Resistance Range: 1, 10, 100, 200, 400, 600, 1200ΩResolution: 0.001, 0.01, 0.1, 1, 5, 10, 20Ω
Accuracy: ±1.5%, ±1.5%, ±2.0%, ±3.0%, ±6.0%, ±10%, ±20%
Current Range: 100, 300mA, 1, 3, 10, 20A
Resolution: 0.01, 0.03mA, 0.001, 0.003, 0.01, 0.03A
Accuracy: ±2.5%
Test Voltage: 3700V max.
Power Supply: 6 x NiMh 1.2V "AAA" batteries
Dimensions: 2.1 x 4.1 x 10.9" (54 x 104 x 276mm)
Weight: 37 oz (1050 g)
REED MS2301 Specifications
Ground Resistance | |
Range | 0.01 to 0.999Ω, 1 to 9.99Ω, 10 to 99.9Ω, 100 to 199.9Ω, 200 to 400Ω, 400 to 600Ω, 600 to 1200Ω |
Accuracy | 0.01 to 0.999Ω: ±(1.5% +0.01Ω) 1 to 9.99Ω: ±(1.5% +0.1Ω) 10 to 99.9Ω: ±(2.0% +0.3Ω) 100 to 199.9Ω: ±(3.0% +1Ω) 200 to 400Ω: ±(6.0% +5Ω) 400 to 600Ω: ±(10% +10Ω) 600 to 1200Ω: ±(20% +20Ω) |
Resolution | 0.001Ω, 0.01Ω, 0.1Ω, 1Ω, 5Ω, 10Ω, 20Ω |
Current | |
Range | 100mA, 300mA, 1A, 3A, 10A, 20A |
Accuracy | 100mA: ±(2.5% +1mA) 300mA: ±(2.5% +2mA) 1A: ±(2.5% +0.003A) 3A: ±(2.5% +0.01A) 10A: ±(2.5% +0.03A) 20A: ±(2.5% +0.05A) |
Resolution | 0.1mA, 0.3mA, 0.001A, 0.003A, 0.01A, 0.03A |
General Specifications | |
Range Selection | Autoranging |
Sampling Time | 1 sec. |
Display | 9,999 count LCD display |
User Selectable Alarm | Yes (High and Low) |
Display Hold | Yes |
Internal Memory | Up to 99 datapoints |
Autoshut off | Yes (after 5 mins, off) |
Power Supply | 9V Battery |
Battery Life | Approx. 10 hours of continuous use (Alkaline) |
Low Battery Indicator | Yes |
Jaw Opening | 1.2" (30mm) |
Overvoltage Category | CAT. II 600V |
Product Certifications | CE |
Operating Temperature | 14 to 122°F (-10 to 50°C) |
Storage Temperature | -4 to 140°F (-20 to 60°C) |
Dimensions | 10.9 x 4.1 x 2.1" (276 x 104 x 54 mm) |
Weight | 2.1lbs (1050g) |

What's included with the REED MS2301
- Ground Resistance Tester
- 3 Resistance Calibration Loops (1Ω, 5Ω and 10Ω)
- Batteries
- Cleaning Cloth
- Wrist Strap
- Hard Carrying Case
Ideal Applications for the REED MS2301
Ground resistance of lightning arrestors, electrical distribution equipment, telecommunication systems and gas station installation.