The Extech GRT300 measures earth ground in 4 ranges from 2 to 2000 Ohm. 4-wire, 3-wire, and 2-wire testing. Large dual line LCD. Automatic I (current) and P (potential) spike check. Test Hold function for easy operation. Autoranging, Automatic Zero adjustment, Data Hold and Auto Power off. AC Earth Voltage. Overrange and low battery indication.

Product Features ;

• 4-wire, 3-wire, and 2-wire testing
• 4-wire, 3-wire, and 2-wire testing
• Automatic I (current) and P (potential) spike check
• Test Hold function for easy operation
• Autoranging, Automatic Zero adjustment, Data Hold and Auto Power off
• AC Earth Voltage
• Overrange and low battery indication

Included ;

1 - Set of Test Leads With Alligator Clips

4 - Auxiliary Earth Bars

1 - Hard Carrying Case

8 - 1.5V AA Batteries