EG480-NIST Triplett EG480 Earth Ground Resistance Meter with Certificate of Traceability to N.I.S.T

An earth ground is used as a zero-volt reference point for power substations, buildings, communication towers, and as a path to dissipate lightning strikes to prevent damage to them. The NEC (National Electrical Code) requires that a single path to ground should be 25 ohms or less. If it is higher than 25 ohms, you should add an additional ground rod 6 feet away. The Earth Ground ResistanceTester provides an easy way to check this reading in installed systemsor for a good location to install a new system.

Specifications

• Earth Resistance - 20,200, 2000
• Accuracy - ±2%
• Resolution - 0.01
• Earth Voltage - 200V
• AC/DC Voltage - 750ACV/1000VDC
• Resistance - 200k
• Continuity - <40
• Power - (6) AA batteries
• Safety Category - CAT III 1000V
• Dimensions - 7.8 x 3.6 x 1.9” (200 x 92 x 50mm)
• Weight - 1.5lbs (700g)

EG480-NIST Specifications PDF