Extech Instruments 4-Wire Earth Ground Resistance Tester With Limited Nist GRT300-NISTL. 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...
Extech Instruments 4-Wire Earth Ground Resistance Tester With Limited Nist GRT300-NISTL. 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...