Megger (Mega-Ω Meter)

The Fieldpiece Digital Megohm Meter, model SMG5

A compact standalone meter designed for checking HVAC compressor insulation. The SMG5 provides a 1000V voltage source, monitors current, and displays the resistance between the test points. Maximum current output is <1mA. It can be used to determine the condition of insulation from winding to ground in a motor, compressor, or transformer. Includes a case, alligator clip lead tip and leads with removable tips.

• Predict compressor failure


• 1000VDC stresses insulation to measure up to 2000Mohms


• Backlit LCD display


• Auto-off to extend battery life


• Case, alligator clip, leads with removable tips