Product Details
The Extech GRT300-NISTL is a 4-wire earth ground resistance tester designed to provide accurate measurements of grounding resistance. This unit includes a 10-foot (3m) test lead set, 9V battery, and a user manual. Key features include an LCD display with maximum reading of 1999, resistance measurement range of 0.01Ω to 1999Ω, and a measurement accuracy of ±2% of reading ±2 digits. The tester operates with a frequency of 50Hz/60Hz and has compliance with IEC61010-1 CAT IV 300V safety standards. The dimensions of the device are 8.5" x 3.5" x 1.5" (215mm x 90mm x 38mm) and it weighs 1.5 lbs (0.68 kg). It is backed by a limited warranty for 1 year.
