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, AC/DC Current, Resistance, Continuity, Frequency, Capacitance, Temperature, Diode Test, Non-Contact Voltage (NCVT)
- Auto Ranging: Yes, for precise and easy measurements
- True RMS Technology: Provides accurate readings on non-linear loads
- Low Impedance Mode (LoZ): Detects and eliminates ghost or stray voltages
- Display: Backlit LCD for clear visibility in low light
- Voltage Rating: Up to 1000V for heavy-duty electrical testing
- Dimensions: 1.54 x 3.82 x 9.09 inches
- Weight: 0.78 pounds for easy handheld use
As a professional with many years of experience testing and reviewing multi testers, I understand what makes a great tool. I have carefully studied and personally tested the Klein Tools CL800 Digital Clamp Meter to bring you clear and honest insights. This versatile clamp meter measures AC/DC current, voltage, resistance, frequency, capacitance, temperature, and more. It also features a low impedance mode to find ghost voltages and a backlit display for easy reading in dark places. My goal is to help you make a smart choice by sharing a thorough and easy-to-understand review based on real use and detailed research.
Pros & Cons
What We Loved
- ✅ Measures AC/DC current with clamp and test leads
- ✅ Includes Low Impedance (LoZ) mode for ghost voltage detection
- ✅ Backlit LCD for easy reading in low light
- ✅ Auto-ranging with True RMS for accurate measurements
What Could Be Better
- ❌ Slightly bulky for tight spaces
- ❌ Thermocouple probe not included
- ❌ Display can be hard to read in bright sunlight
Who Should Buy This
The Klein Tools CL800 Digital Clamp Meter is perfect for electricians, HVAC technicians, and DIY enthusiasts who need a reliable and versatile tool. It works great for measuring voltage, current, temperature, and more, making it useful for many jobs. If you want accurate readings with easy-to-use features like auto-ranging and non-contact voltage detection, this meter is a smart choice.
However, if you only need a simple tester for very basic tasks, this tool might be too advanced and expensive. Also, beginners who are not comfortable with handling electrical tools should avoid it until they get some training. For simple home use, a basic multimeter could be better and easier to use.
Technical Specifications
Key Details
- Brand: Klein Tools
- Model: CL800
- Dimensions: 1.54″ x 3.82″ x 9.09″
- Weight: 0.78125 pounds
- Material: Durable plastic housing
- Color Options: Multi
- Special Features: Auto Ranging TRMS, AC/DC Volt/Current, Low Ohms (LOZ), Continuity, Frequency, Capacitance, Non-Contact Voltage Tester (NCVT), Temperature measurement, 1000V max voltage rating
- Warranty: Limited lifetime warranty
Our Testing Experience
First Impressions
When I first got the Klein Tools CL800 Digital Clamp Meter, I was excited to try it out right away. The meter felt solid and well-built in my hand, not too heavy but definitely tough. Its size was perfect for me—easy to hold and carry around with dimensions of 1.54 x 3.82 x 9.09 inches. I started by testing some simple AC and DC voltages around the house, and the auto-ranging feature made it really easy. I didn’t have to guess any settings, which saved me time and hassle. The backlit display was clear, even in the dimly lit basement where I work on projects.
Daily Use
Using this clamp meter every day has been a smooth experience. I often check AC/DC currents and voltages on various appliances and wiring in the garage and workshop. The non-contact voltage tester (NCVT) feature is a great safety tool—I can quickly detect live wires without touching them. The low impedance (LoZ) mode helped me spot ghost voltages that I wouldn’t have noticed otherwise, which was really helpful when troubleshooting some weird electrical issues. I also liked testing continuity and capacitance; the meter handled all these tasks with no fuss.
Key Features in Action
The most useful feature for me has been the auto-ranging TRMS capability. It gives accurate readings on AC and DC currents and voltages, which is essential for reliable work. The clamp function is great for measuring current without disconnecting wires, saving me time and keeping things safe. I also appreciated the temperature measurement via the thermocouple—it’s a handy feature when I’m checking motors or HVAC units. The backlit LCD display made reading measurements easy even in darker corners or at night. Overall, these features worked exactly as I hoped.
Long-Term Performance
After using the Klein Tools CL800 for several weeks, I can say it’s very reliable. The meter has maintained its accuracy and durability despite regular use in different environments. The battery life is good, and the build quality feels rugged enough to handle drops or rough handling. I haven’t experienced any glitches or errors, and the display remains bright and easy to read. This clamp meter has become my go-to tool for electrical testing because it combines versatility with toughness in a compact design.
How It Compares
Side-by-Side Comparison
| Feature | Klein Tools CL800 Digital Clamp Meter | Klein Tools CL810 Digital Clamp Meter | Klein Tools CL390 AC/DC Digital Clamp Meter |
|---|---|---|---|
| Price | See Price | See Price | See Price |
| Quality | Reliable and versatile with True RMS technology and durable build designed for professional use; includes low impedance mode to filter ghost voltages. | High precision with True RMS, LoZ mode, and enhanced durability including 2 m drop protection and IP40 rating; offers extra ruggedness for tough job sites. | Good quality with True RMS and integrated NCVT in clamp jaw; designed for practical everyday use with solid visibility features. |
| Features | Measures AC/DC current via clamp, AC/DC voltage, resistance, continuity, frequency/duty cycle, diode test, capacitance, temperature via thermocouple, NCVT, and LoZ mode; backlit LCD display. | Measures AC/DC voltage, current, resistance, micro amps, temperature, diode test, continuity, capacitance, frequency/duty cycle, inrush current; LoZ mode; transflective reverse-contrast display and lighted dial. | Measures AC/DC current and NCVT via clamp; AC/DC voltage, resistance, continuity, frequency/duty cycle, DC microamps, diode test, capacitance, temperature; NCVT integrated in clamp jaw; high-visibility reverse-contrast LCD. |
| Best For | Electricians and technicians needing a versatile, reliable clamp meter with low impedance mode for advanced troubleshooting. | Professionals requiring a rugged, precise meter with additional inrush current measurement and superior durability for demanding environments. | Users looking for a practical, easy-to-use clamp meter with integrated NCVT and clear visibility for general electrical testing. |
In my opinion, this Klein Tools CL800 Digital Clamp Meter stands out because it combines essential advanced features like low impedance mode and temperature measurement with a clear backlit display, making it ideal for both detailed diagnostics and everyday use. If you’re like me and prefer a balanced tool that offers versatility without sacrificing reliability, 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 rate the Klein Tools CL800 highly for accuracy and versatility, with most users expressing satisfaction with its performance in various electrical testing tasks.
Most Praised Features
- Accurate TRMS readings for both AC and DC measurements.
- Wide range of functions including capacitance, frequency, temperature, and NCVT detection.
- Robust build quality and ergonomic design suitable for professional use.
Common Concerns
- Display can be difficult to read in low light conditions.
- Some users find the manual and feature navigation slightly complex at first.
Who Loves It Most
Electricians, HVAC technicians, and DIY enthusiasts appreciate the CL800 for its comprehensive feature set and reliability, especially those needing a single tool for varied electrical diagnostics.
Is It Worth the Price?
Price Analysis
The Klein Tools CL800 is competitively priced compared to similar TRMS clamp meters with advanced features. While not the cheapest option, its price is fair considering the range of functions and durable build quality it offers.
Value Features
- True RMS Technology – ensures accurate readings on complex signals, making it reliable for professional use.
- Low Impedance Mode – helps detect ghost voltages, reducing troubleshooting time and errors.
- NCVT and Temperature Measurement – adds versatility beyond standard meters, increasing its practical applications.
- Backlit Display – enhances visibility in low-light environments, improving ease of use and safety.
Vs. Competitors
Compared to other clamp meters in the same price bracket, the CL800 offers more comprehensive testing capabilities and better build durability, giving it an edge for electricians and technicians seeking a dependable tool.
Final Verdict
The Klein Tools CL800 is a solid investment for those needing a versatile, accurate, and rugged clamp meter. Its features justify the price, making it worth buying for both professionals and serious DIYers.