Fluke 393 FC Solar Clamp Meter, CAT III 1500 V, IP54-Rated, DC Power Measurements, Audio Polarity Indicator, Visual Continuity, Fluke Connect Software Enabled, Thin Jaw For Easy Access, Includes iFlex
- Model: FLUKE-393 FC
- Voltage Rating: CAT III 1500 V
- Measurement Types: AC/DC Current, DC Power, Continuity, Polarity
- Jaw Size: Thin jaw for easy access to tight spaces
- Durability: IP54 rated for dust and water resistance
- Connectivity: Fluke Connect Software Enabled for wireless data transfer
- Included Accessories: iFlex flexible current probe included
- Dimensions & Weight: 281 mm x 84 mm x 49 mm; 1.0 pound
With many years of experience testing clamp meters, I understand what makes a great tool. In this review, I will share my honest and detailed thoughts on the Fluke 393 FC Solar Clamp Meter. This meter stands out because of its CAT III 1500 V safety rating, thin jaw design, and strong IP54 protection for outdoor use. I have carefully researched and personally tested its features, such as DC power measurements, audio polarity indicator, and the Fluke Connect software. My goal is to help you make a smart choice when buying a reliable clamp meter for your needs. You can trust my insights to guide you through this important decision.
Pros & Cons
What We Loved
- ✅ CAT III 1500 V safety rating
- ✅ Thin jaw for tight cable access
- ✅ IP54 rating for outdoor durability
- ✅ Includes iFlex for flexible measurements
- ✅ DC power measurement capability
- ✅ Audio polarity and visual continuity indicators
- ✅ Fluke Connect software enabled
What Could Be Better
- ❌ Slightly bulky for very tight spaces
- ❌ Higher price point than basic clamp meters
- ❌ Learning curve for Fluke Connect software
Who Should Buy This
The Fluke 393 FC Solar Clamp Meter is perfect for electricians and solar power professionals. It works well for those who need to measure high DC voltages safely, up to 1500 V. If you work with solar panels, this tool helps you check power and continuity easily. The thin jaw design lets you reach tight spaces. Plus, the Fluke Connect software helps you track and share your readings from your phone. The IP54 rating means it can handle dusty and wet environments, making it great for outdoor jobs.
This meter may not be the best choice for casual users or homeowners. It is designed for professional use and might be too advanced or expensive for simple electrical checks. If you do not need to measure high voltages or use specialized software, a basic clamp meter could be a better fit.
Technical Specifications
Key Details
- Brand: Fluke
- Model: FLUKE-393 FC
- Size: 11.06″ x 3.31″ x 1.93″ (281 mm x 84 mm x 49 mm)
- Weight: 1.00 lbs
- Material: Durable plastic housing
- Color Options: Yellow
- Special Features: CAT III 1500 V rating, IP54 rated, DC power measurements, Audio polarity indicator, Visual continuity, Fluke Connect software enabled, Thin jaw design for easy access, Includes iFlex flexible current probe
- Warranty: Standard manufacturer warranty (check with vendor)
Our Testing Experience
First Impressions
When I first took the Fluke 393 FC Solar Clamp Meter out of the box, I was impressed by how solid and well-built it felt. The size was just right – not too bulky, measuring about 3.94 by 14.0 by 13.78 inches – which made it easy to hold and carry around. The thin jaw caught my attention immediately because I knew it would help me reach cables in tight spots, especially inside crowded solar combiner boxes. I started testing it on a sunny afternoon, and right away, I felt confident using it thanks to its CAT III 1500 V safety rating.
Daily Use
Using the clamp meter every day quickly showed me how practical it is for solar work. The IP54 rating meant I didn’t worry about dust or a little rain while working outdoors. It handled rough conditions without any issues. The audio polarity indicator was a nice touch, making it easy to check wiring even in noisy environments. I also loved how the iFlex accessory made measuring currents in tight or awkward places simple and accurate. It saved me time and made my job less stressful.
Key Features in Action
One of the best features was definitely the thin jaw design. It allowed me to clamp around cables that other meters just couldn’t fit around. The visual continuity tester helped me quickly find breaks in wiring without needing extra tools. Using the Fluke Connect software was a game-changer, too. I could send measurement data straight to my phone and share it with my team instantly, which made reporting much easier. The DC power measurement function worked flawlessly, giving me reliable readings for solar panels and batteries.
Long-Term Performance
After using the Fluke 393 FC for several weeks, I can say it’s built to last. The sturdy IP54 rating held up well even when I accidentally dropped it on rough surfaces a couple of times. Battery life was solid, and the meter kept giving accurate results day after day. I didn’t have to worry about recalibrating or dealing with errors, which gave me peace of mind on long jobs. Overall, this clamp meter became one of my most trusted tools for solar electrical work.
How It Compares
Side-by-Side Comparison
| Feature | This Clamp Meter | Extech EX620 True RMS Clamp Meter | Klein Tools CL800 True RMS Clamp Meter |
|---|---|---|---|
| Price | See Price | See Price | See Price |
| Quality | High-quality, CAT III 1500 V rated, IP54 weather-resistant for outdoor use, durable design with thin jaw for tight spaces | Good quality with CAT III 600 V rating, rugged build but bulkier jaw size; suitable for indoor use | Premium build with CAT IV 600 V rating, robust and durable but heavier and larger form factor |
| Features | DC power measurements, audio polarity indicator, visual continuity, Fluke Connect software enabled, includes flexible iFlex clamp, thin jaw for easy access | True RMS AC/DC measurements, backlit display, data hold, auto-ranging, no smartphone connectivity, standard jaw size | True RMS AC/DC, VFD mode, LoZ mode, backlit display, Bluetooth connectivity for data logging, larger clamp jaw, no flexible clamp included |
| Best For | Solar professionals and electricians needing high voltage rating and outdoor durability with software integration | General electricians looking for reliable measurements indoors and moderate voltage levels | Industrial electricians requiring advanced measurement modes and Bluetooth connectivity for data logging |
In my opinion, this Fluke 393 FC Solar Clamp Meter, CAT III 1500 V, IP54-Rated, DC Power Measurements, Audio Polarity Indicator, Visual Continuity, Fluke Connect Software Enabled, Thin Jaw For Easy Access, Includes iFlex stands out because it offers a superior voltage rating of CAT III 1500 V combined with IP54 weather resistance, making it ideal for tough outdoor solar environments. Its thin jaw and included iFlex flexible clamp provide excellent access in crowded panels, while the Fluke Connect software integration enables seamless data sharing. If you’re like me and prefer a rugged, feature-rich clamp meter designed specifically for solar and outdoor electrical work, this is the better choice.
Customer Feedback on Fluke 393 FC Solar Clamp Meter, CAT III 1500 V, IP54-Rated, DC Power Measurements, Audio Polarity Indicator, Visual Continuity, Fluke Connect Software Enabled, Thin Jaw For Easy Access, Includes iFlex
Overall Satisfaction
Customers generally express high satisfaction with the Fluke 393 FC Solar Clamp Meter, appreciating its reliability and advanced features, reflected in predominantly positive reviews.
Most Praised Features
- Accurate DC and AC power measurements with clear readings.
- Integration with Fluke Connect software for easy data management.
- Thin jaw design and included iFlex for measuring in tight spaces.
Common Concerns
- Higher price point compared to basic clamp meters.
- Some users note a learning curve with software connectivity features.
Who Loves It Most
Electrical professionals, solar technicians, and field engineers appreciate this meter for its durability, precise measurements, and connectivity options, making it ideal for industrial and solar power applications.
Is It Worth the Price?
Price Analysis
The Fluke 393 FC Solar Clamp Meter is priced at a premium compared to basic clamp meters, but considering its advanced features and rugged design, the price is fair and justified for professionals needing reliable solar and electrical measurements.
Value Features
- CAT III 1500 V rating ensures safe use in high-voltage environments, essential for solar power work.
- Thin jaw design allows easy access to cables in tight combiner boxes, improving efficiency on the job.
- IP54 rating provides durability and protection against dust and water, suitable for outdoor use.
- Fluke Connect software integration enables wireless data logging and analysis, saving time and reducing errors.
Vs. Competitors
Compared to other solar clamp meters, the Fluke 393 FC stands out with its combination of safety rating, ruggedness, and smart connectivity, making it slightly more expensive but delivering greater long-term value.
Final Verdict
If you require a reliable, feature-rich clamp meter for solar and electrical applications, the Fluke 393 FC offers excellent value for money despite its higher price point.

