เครื่องวัดความต้านทาน GRT350 EXTECH 

4-Wire Earth Ground Resistance/Resistivity Tester

Measures earth ground resistance from 2 to 2000 Ohm and resistivity from 0.06 to 628 kOhm-m

The GRT350 is a 4-wire earth ground resistance and resistivity tester which measures earth ground resistance from 2 to 2000 Ohm and resistivity from 0.06 to 628 ohm-m. The GRT350 supports 4-wire, 3-wire, and 2-wire testing. This tester has a large dual line LCD, automatic spike check, test hold function, auto ranging, data hold and auto power off. The GRT350 can also store and recall up to 200 test results, has over-range and low battery indications. Product is complete with test leads with alligator clips, 4 auxiliary earth bars, hard carrying case, user's manual and eight 1.5V AA batteries. CE certified with a CAT IV 300V safety rating.

Features:

• Earth resistivity (p) test
• 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, Data Hold and Auto Power off
• AC Earth Voltage
• Store/recall up to 200 test results
• Overrange and low battery indication
• Complete with test leads with alligator clips, 4 auxiliary earth bars, hard carrying case, and eight 1.5V AA batteries

Product Information
Datasheet
Manual
Extech Catalog