Choosing a FLUKE Multifunction Tester | 1672 vs 1673 FC vs 1674 FC Comparison
Electricians use a multifunction tester (MFT) because it combines all the essential installation tests into a single, reliable instrument. Instead of carrying separate tools for continuity, insulation resistance, loop impedance, RCD testing, and polarity checks, an MFT allows these critical measurements to be performed quickly and accurately in one device. Trusted worldwide, FLUKE is a leading brand in electrical testing equipment, giving electricians confidence that their results are accurate, compliant with BS7671, and backed by a reputation for safety and durability.
FLUKE 1672 vs 1673 vs 1674: Which Multifunction Installation Tester is Right for You?
Accurate and reliable installation testing is essential for electricians, contractors, and inspectors who need to ensure the safety and compliance of electrical systems. The FLUKE 1670 Series - which includes the FLUKE 1672, 1673 FC, and 1674 FC Multifunction Installation Testers - has been designed to make that process faster, safer, and easier to manage.
These testers help you carry out all required checks in line with IEC/HD 60364-6 and other relevant standards. But which one is right for you? In this article, we break down the key features of each model, highlight the differences, and provide guidance on choosing the best tool for your work.
Why Choose a FLUKE Multifunction Installation Tester?
- Compliance: All models help you meet international and UK regulations such as BS7671.
- Reliability: Rugged design ensures accuracy and durability on site.
- Efficiency: Features such as Auto Test (1673 FC and 1674 FC) and automated measurement validation help you complete tests up to 30% faster.
- Reporting: TruTest™ software integration and FLUKE Connect™ (1673 FC and 1674 FC) streamline documentation and reduce reporting time by up to 50%.
The Highlights...
Simplified Interface and Setup: Quick and hassle-free setup and test preparation ensures you have more time for what matters most: testing.
30% Faster Testing: The unique Auto Test function enables you to run through an entire installation test sequence at the touch of a button. Automatic Measurement Validation provides you with an immediate visual pass/fail indication to quickly identify potential issues.
Reduced Documentation Time up to 50%: Wireless connectivity automates linking test results to circuits or points under test, reducing manual data entry. Fluke Connect™ compatibility makes storing, managing, and sharing your measurement data from the field easy. Integration with Fluke TruTest™ Software allows you to generate inspection certificates in just a few simple steps.
Overview of the FLUKE 1670 Series
The FLUKE 1670 Series is built for domestic, commercial, and industrial applications. All models provide essential installation testing functions, including:
- Insulation resistance testing
- Continuity testing
- Loop and line impedance
- Prospective Earth Fault Current (PEFC) and Prospective Short-Circuit Current (PSC)
- RCD trip current and trip time
- Wiring polarity check
FLUKE 1672: Reliable Entry-Level Choice
The FLUKE 1672 is the entry-level model in the series. It provides all the core testing functions required to verify electrical installations.
- Test voltages: 100 V, 250 V, 500 V, and 1000 V
- Full range of continuity and insulation resistance measurements
- Basic RCD testing (Types AC, A, F)
- Wiring polarity and voltage measurements
Best suited for: electricians and contractors who need a dependable tester for essential compliance testing without advanced reporting or connectivity.
FLUKE 1673 FC: Mid-Range with More Functionality
The FLUKE 1673 FC builds on the 1672 with more advanced features, designed for those working on larger projects or who want to streamline testing.
- Auto Test function for faster, automated test sequences
- Automatic measurement validation with pass/fail indication
- FLUKE Connect™ compatibility for wireless data transfer and storage
- Expanded test voltages: 50 V, 100 V, 250 V, 500 V, 1000 V
- Memory storage with data recall
- Earth resistance testing
Best suited for: contractors and inspectors handling frequent testing who want to save time and simplify recordkeeping.
FLUKE 1674 FC: Premium and Most Advanced
The FLUKE 1674 FC is the top-of-the-line model in the series, offering the most comprehensive set of features for advanced users.
- Includes all features of the 1673 FC
- Patented Insulation PreTest™ function to prevent accidental damage to appliances during testing
- Enhanced reporting and compatibility with FLUKE TruTest™ software
- USB-C and Bluetooth Low Energy (BLE) connectivity
- Additional test functions: Insulation Monitoring Device (IMD) testing, Surge Protection Device (SPD) functional testing, and voltage drop measurement
- Z Max memory for loop tests
Best suited for: professionals in compliance-heavy industries and large teams who need advanced features, faster workflows, and robust data management.
Side-by-Side Comparison Table:
| Feature |
FLUKE 1672 |
FLUKE 1673 FC |
FLUKE 1674 FC |
| Test Voltages |
100, 250, 500, 1000 V |
50, 100, 250, 500, 1000 V |
50, 100, 250, 500, 1000 V |
| Auto Test Function |
– |
✔️ |
✔️ |
| FLUKE Connect™ Wireless |
– |
✔️ |
✔️ |
| Insulation PreTest™ |
– |
– |
✔️ |
| Memory Storage |
– |
✔️ |
✔️ (Enhanced) |
| Earth Resistance |
– |
✔️ |
✔️ |
| Additional Tests (IMD, SPD, Voltage Drop) |
– |
– |
✔️ |
How do I choose the right model?
- If you need a basic, reliable tester for essential compliance checks → choose the FLUKE 1672
- If you need efficiency and wireless data management → choose the FLUKE 1673 FC
- If you need the most advanced features with full reporting → choose the FLUKE 1674 FC
Get in touch to find the right 1670 Series tester for you.
The Takeaway
The FLUKE 1670 Series is designed to save electricians and contractors valuable time while ensuring accuracy and compliance. Whether you are looking for an entry-level option with essential functions, a mid-range model with memory and wireless data transfer, or the most advanced tester with enhanced safety and reporting, there is a FLUKE installation tester that meets your needs.
Next step: Explore the FLUKE 1670 Series today and choose the model that will improve your testing workflow.
❓ Frequently Asked Questions (FAQ)
Q1: What is the main difference between the FLUKE 1672, 1673 FC, and 1674 FC?
A. The FLUKE 1672 covers essential testing, the 1673 FC adds Auto Test, wireless connectivity, and memory, and the 1674 FC includes advanced functions such as Insulation PreTest, IMD and SPD testing, and enhanced reporting.
Q2: Which FLUKE 1670 Series tester is best for large commercial or industrial projects?
A. The FLUKE 1674 FC is the best choice for large-scale projects, offering full reporting, advanced safety functions, and wide compatibility with standards.
Q3: Does the FLUKE 1672 support FLUKE Connect™?
A. No, FLUKE Connect™ wireless compatibility is only available on the FLUKE 1673 FC and 1674 FC models.
Q4: Do all models meet UK regulations such as BS7671?
A. Yes, all three models are designed to meet BS7671 and other international installation test standards.
▶ Video: FLUKE 1670 Series Setting Up a Project!
▶ Video: FLUKE 1670 Series Installation Set Up!
▶ Video: FLUKE 1670 Series Save Time Reporting!
