Product selection guide: Insulation testers

Use our product selection guide to find the insulation tester that fits your needs best.
Fluke 1577 Insulation Multimeter Image 01
Fluke 1550C 5 kV Insulation Tester with standard ir3000 FC wireless data connector
Fluke 1577 Insulation MultimeterFluke 1550C FC 5 kV Digital Insulation Tester
Insulation test voltages500 V, 1000 VUser selectable 250 V to 5000 V 
Insulation resistance0.01 MΩ to 600 MΩ250 KΩ to 1 TΩ 
Auto-discharge of capacitive voltage   
AC/DC voltage  
DC millivolts  
AC/DC milliamps  
Resistance0.01 MΩ to 50 MΩ 
Warranty3 years3 years 
Remote probe, test leads, alligator clips   
Rugged, utility hard case   
Auto power off   
PI/DAR timed ratio test  
Memory storage