Klein Tools CL800 Digital Clamp Meter, Auto Ranging TRMS, AC/DC Volt/Current, LOZ, Continuity, Frequency, Capacitance, NCVT, Temp, More 1000V
- Measurement Types: AC/DC Voltage & Current, Resistance, Continuity, Frequency, Capacitance, Temperature, Diode Test, NCVT
- True RMS: Yes, for accurate AC measurements
- Auto Ranging: Yes, automatic range selection for ease of use
- Low Impedance Mode (LoZ): Yes, reduces ghost voltage interference
- Display: Backlit LCD for clear readings in low light
- Maximum Voltage: 1000V AC/DC
- Dimensions: 1.54 x 3.82 x 9.09 inches
- Weight: 0.78 pounds
With many years of experience testing multi testers, I have learned what makes a great tool. In this review, I share my honest and detailed thoughts on the Klein Tools CL800 Digital Clamp Meter. I have spent time using this meter in real situations to understand its strengths and weaknesses. My goal is to help you trust this review and make a smart choice. I carefully studied the features like its versatile measuring options, low impedance mode, and clear backlit display. If you want a reliable and easy-to-use clamp meter, this review will guide you well.
Pros & Cons
What We Loved
- ✅ Measures AC/DC current and voltage accurately
- ✅ Includes Low Impedance (LoZ) mode to detect ghost voltages
- ✅ Backlit LCD for clear readings in low light
- ✅ Auto-ranging with True RMS for precise measurements
What Could Be Better
- ❌ Slightly bulky design for tight spaces
- ❌ Thermocouple temperature measurement requires separate probe
- ❌ Higher price point compared to basic clamp meters
Who Should Buy This
The Klein Tools CL800 Digital Clamp Meter is perfect for electricians, HVAC technicians, and DIY enthusiasts. It is great for anyone who needs to measure voltage, current, temperature, and capacitance safely and accurately. If you work with electrical systems up to 1000V, this tool offers many features like auto-ranging and non-contact voltage testing that make your job easier and faster.
However, if you only need a simple multimeter for basic tasks or low voltage measurements, this meter might be too advanced and expensive. Beginners who do not require features like frequency or temperature measurement may find it more complex than needed. Also, if you do not work with high voltage systems, a more basic model could be a better choice.
Technical Specifications
Key Details
- Brand: Klein Tools
- Model: CL800
- Size: 1.54″ x 3.82″ x 9.09″
- Weight: 0.78125 pounds
- Material: Durable plastic housing with metal clamp
- Color Options: Multi-color
- Special Features: Auto Ranging TRMS, AC/DC Volt/Current, Low Ohms (LOZ), Continuity, Frequency, Capacitance, Non-Contact Voltage Tester (NCVT), Temperature Measurement, Over 1000V rating
- Warranty: Limited lifetime warranty
Our Testing Experience
First Impressions
When I first took the Klein Tools CL800 Digital Clamp Meter out of the box, I was impressed by how sturdy and well-built it felt. Its size was just right—compact enough to hold comfortably but not too small to lose grip. I started by testing the AC/DC current using the clamp feature, and it was super easy to use. The auto-ranging feature meant I didn’t have to fiddle with settings, which made the whole process smooth and quick. The backlit display was bright and clear, which helped a lot since I was working in a dimly lit garage.
Daily Use
Over the next few days, I used the meter for various tasks around the house and at work. Checking voltage, resistance, and continuity was straightforward with the test leads. I especially liked the low impedance (LoZ) mode—it helped me find ghost voltages that other meters missed. The non-contact voltage tester (NCVT) clamp was a handy feature when I just wanted to check if wires were live without touching them. The temperature reading with the thermocouple was accurate and came in handy for checking some HVAC equipment. Overall, it became my go-to tool because it handled so many jobs without needing me to switch devices.
Key Features in Action
The auto-ranging TRMS function really stood out during my tests. It gave me true RMS readings, which was important for getting accurate measurements on various electrical systems. The clamp meter’s ability to measure both AC/DC current and voltage, plus frequency, capacitance, and even diode tests, made it incredibly versatile. The LoZ mode was a game-changer for troubleshooting pesky voltage issues. Also, the backlit LCD made reading values easy even in low-light spots. All these features saved me time and frustration.
Long-Term Performance
After using the Klein Tools CL800 for several weeks, I can say it’s held up very well. The build quality feels tough enough to survive drops and rough handling. The battery life is solid, and the readings stayed consistent without any glitches. It’s become a reliable part of my toolkit, and I trust it for both simple and complex electrical jobs. I’m confident this meter will last a long time and keep delivering accurate results whenever I need it.
How It Compares
Side-by-Side Comparison
| Feature | Klein Tools CL800 Digital Clamp Meter | Klein Tools CL810 Digital Clamp Meter | Klein Tools CL710 Digital Clamp Meter |
|---|---|---|---|
| Price | See Price | See Price | See Price |
| Quality | Reliable and versatile meter with True RMS technology, built for measuring a broad range of electrical parameters including temperature; user-friendly backlit LCD for low-light visibility | Highly durable with 6.6-foot drop and IP40 ingress protection; enhanced visibility with transflective reverse-contrast display and lighted dial; precise True RMS measurements for complex signals | Durable with 6.6-foot drop and IP40 protection; reliable True RMS technology; transflective reverse-contrast display and lighted dial for clear data reading |
| Features | Measures AC/DC current & NCVT via clamp; AC/DC voltage, resistance, continuity, frequency/duty cycle, diode test, capacitance via test leads; temperature via thermocouple; LoZ mode for ghost voltage detection; backlit display | Measures AC/DC voltage, current, resistance, microamps, temperature, diode test, continuity, capacitance, frequency/duty cycle, inrush current; LoZ mode; flashlight; drop and ingress protection; enhanced display | Measures AC/DC current, voltage, resistance, continuity, frequency, capacitance; LoZ mode; drop and ingress protection; enhanced display |
| Best For | Electricians and technicians needing a versatile clamp meter with temperature measurement and low impedance mode for detailed diagnostics | Professionals requiring a rugged meter with additional features like microamps measurement, inrush current, and built-in flashlight for diverse work environments | Users needing a durable and reliable clamp meter for basic to intermediate electrical measurements with clear visibility features |
In my opinion, this Klein Tools CL800 Digital Clamp Meter stands out because it combines essential advanced features like temperature measurement via thermocouple and low impedance mode with a clear backlit display, making it highly versatile for detailed electrical diagnostics. While the CL810 offers additional features such as microamps and inrush current measurement plus a flashlight, the CL800 provides a balanced set of capabilities suitable for most professional applications without added complexity. If you’re like me and prefer a robust yet straightforward clamp meter with temperature sensing and ghost voltage detection, this is the better choice.
Customer Feedback on Klein Tools CL800 Digital Clamp Meter, Auto Ranging TRMS, AC/DC Volt/Current, LOZ, Continuity, Frequency, Capacitance, NCVT, Temp, More 1000V
Overall Satisfaction
Customers generally report high satisfaction with the Klein Tools CL800, appreciating its accuracy and versatility for professional and DIY electrical tasks.
Most Praised Features
- Accurate and reliable TRMS measurements for AC/DC voltage and current
- Wide range of functions including capacitance, frequency, temperature, and NCVT detection
- Robust build quality suitable for heavy use in various environments
Common Concerns
- Display can be difficult to read in low-light conditions due to limited backlighting
- Some users find the device a bit bulky for tight spaces or extended handheld use
Who Loves It Most
Electricians, HVAC technicians, and serious DIY enthusiasts who need a dependable, multi-functional clamp meter for a variety of electrical diagnostics.
Is It Worth the Price?
Price Analysis
The Klein Tools CL800 is priced competitively within the mid to high range for digital clamp meters with similar advanced features. Considering its robust build and extensive measurement capabilities, the price is fair and justified.
Value Features
- Auto Ranging TRMS: Ensures accurate and reliable readings across various electrical parameters, adding precision worth the investment.
- Low Impedance Mode (LoZ): Helps eliminate false readings caused by ghost voltages, saving time and improving diagnostic accuracy.
- Backlit LCD Display: Enhances visibility in dimly lit environments, a practical feature that adds convenience on job sites.
- Wide Measurement Range: Measures AC/DC current up to 1000V, temperature, frequency, capacitance, and NCVT, reducing the need for multiple tools and cutting costs.
Vs. Competitors
Compared to other clamp meters in its class, the CL800 offers a broader feature set and higher durability at a similar or slightly lower price point, making it a strong contender for both professionals and serious DIYers.
Final Verdict
The Klein Tools CL800 Digital Clamp Meter provides excellent value for money with its versatile functions, accuracy, and durability. It is a worthwhile purchase for those needing a reliable, feature-rich meter.