Extech GRT300 Earth Tester Kit CAT IV

The FLIR 4-Wire Earth Ground Resistance Tester is a reliable tool for measuring earth ground resistance in various ranges. With features such as 4-wire, 3-wire, and 2-wire testing, large dual line LCD display, and automatic spike checks, this tester ensures accurate results. The kit includes test leads, earth bars, carrying case, and batteries, making it a complete solution for all your earth ground measurement needs.

Test hold function for simplified operation
Automatic zero adjustment for accurate readings
AC earth voltage measurement capability
Overrange and low battery indication for enhanced usability