Fluke Multifunction Installation Testers work safer, protect the installation under test and share results

Fluke 1660 Series test to BS7671 18th Edition and more.

The 1660 Series are the latest in the line of Multifunction Installation Testers from Fluke built to test fixed wiring installations based on the HD 60364-6 regulation including UK BS7671 18th Edition.

Did you know?

The latest update of the BS 7671 18th Edition requires insulation test between all live conductors.

The Fluke 1664 FC Installation Tester is the only tester with “Insulation PreTest” which warns you about potentially serious and costly mistakes.

BS 7671 18th Edition

Be safer, be faster, stay connected

Insulation PreTest

Insulation PreTest

Protect the installation and avoid costly mistakes. If the tester detects that appliances are connected to the system during test, it will stop the insulation test and provide a visual and audible warning.

Auto Test

Auto Test

Reduce test time up to 40%, reduce the number of manual connections and decrease the possibility of making errors. Do all required installation tests in ONE sequence, ensuring compliance with local installation regulations.

Fluke Connect

Fluke Connect

Save time without losing information. Eliminate data entry by wirelessly syncing measurements directly from your installation tester. Retrieve stored results from the office or in the field to make decisions in real time.

Need personalized information?

Contact your local Fluke distributor and get technical support or product advice. The Fluke 1660 Series Multifunction Installation Testers offer great versatility and reliability. Our distributors have you covered to make sure you select the instrument that is right for you. Don’t miss your chance and discover our latest promotions.

Which Fluke Multifunction Installation Tester is right for you?

Compare the Fluke 1660 Series
Find the right model for you now!

  1662 1663 1664 FC
Insulation-PreTest™ safety function
Insulation at L-N, L-PE, N-PE inputs    
Auto Test sequence
Fluke Connect® compatibility    
Test smooth dc sensitive RCDs (Type B/B+)
Earth resistance  
Covering all basic installation test functions
Loop and line resistance—mΩ resolution    
Continuity at L-N, L-PE, N-PE inputs
Voltage trms (ac and dc) and frequency
Wiring polarity checker, detects broken PE and N wires
Insulation resistance
Continuity and resistance
Measure motor windings with continuity test (@ 10 mA)
Loop and line resistance
Prospective Earth Fault Current (PEFC/IK)
Prospective Short-Circuit Current (PSC/IK)
RCD trip time
RCD trip current (ramp test)
Measures trip time and current for RCD type A and AC in one test
RCD variable test current
Automatic RCD test sequence
Phase sequence test
Special features      
Fluke Connect® compatibility
ShareLive™ calling    
Fluke Cloud™ storage
On/Off switchable Auto Start for RCD and Looptest
Memory interface
Z Max memory  
IR-USB and BLE interface
(use with optional Fluke DMS software and FVF)
Included accessories      
Heavy duty mains cord with single input connector
Hard case
Remote control probe
Zero adapter
Complete datasheet Download Download Download
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Fluke TestGuide

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Application note

Testing RCD

Application Note
Verifying the correct and safe operation of RCDs involves a number of dedicated tests, all of which can be carried out using the Fluke 1660 Series.



New Fluke T6
Want to troubleshoot before you use your installation tester? Now you can measure voltage without test leads with Fluke T6 Electrical Tester.

Act now!

Get in touch with your local Fluke distributor for prices, a quotation or to purchase the multifunction installation tester. They can also provide you with information about warranty, traceability, calibration, repair and self-maintenance.

Why Fluke

With 70 years of experience in providing testing and troubleshooting solutions in manufacturing and service industries, you can rest assured that you’re in good hands.

Each Fluke Electrical Tester is built without compromise to the Fluke standard of portability, ruggedness, safety, ease of use and rigid standards of quality.

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