Klein CL800 vs CL900 Clamp Meter

Klein CL800 vs CL900 – Digital Clamp Meter Face-Off

The Klein CL800 and CL900 Digital Clamp Meter are both cutting-edge tools designed to measure electrical current without the need for direct contact. They make your electrical work a breeze by securely clamping around wires and displaying accurate readings on their digital screens.

But not sure which one to choose. Today, we’re diving into the epic showdown between the Klein CL800 and CL900. By understanding the features and capabilities of the Klein CL800 and CL900, you’ll be equipped to make an informed choice that aligns perfectly with your needs.

Throughout this comparison, we’ll explore each model’s unique strengths and functionalities, helping you determine which one suits your requirements like a glove. 

So let’s get started!

Difference Between Klein CL800 and CL900

The main differences between the Klein CL800 and CL900 clamp meters lie in their capabilities. The CL800 offers temperature measurement functionality, True RMS for accurate readings in non-linear systems, and a reasonable price point, making it a versatile and cost-effective choice. In contrast, the CL900 boasts a higher current measurement capacity of up to 2000 amperes, inrush current measurement capability, and a rugged build designed for demanding environments.

The decision between the two depends on specific needs, with the CL800 being suitable for those who prioritize temperature measurement and affordability, while the CL900 caters to users requiring higher current measurements and durability.

Klein CL800 vs CL900 – Specifications

Let’s dig into the details of the Klein CL800 and CL900 with a handy specifications table. Check out the side-by-side comparison below:

SpecificationsKlein CL800Klein CL900
Drop Protection6.6 ft. (2 m)6.6 ft. (2 m)
Ingress ProtectionIP40IP40
AC Current600 Amps2000 Amps
DC Current600 Amps2000 Amps
AC/DC Voltage1000 Volts1000 Volts
Frequency1Hz – 500kHz1Hz – 500kHz
LCD Display CountDigital LCD6000
Jaw Opening1.38 inches (35 mm)1.38 inches (35 mm)
True RMSYesYes
Data HoldYesYes
Safety RatingCAT IV 600V, CAT III 1000VCAT IV 600V, CAT III 1000V
Warranty2 years2 years

Now that you have a clear picture of the specifications, you can better evaluate which model aligns with your specific electrical measurement needs. Stay tuned as we delve deeper into the unique aspects of the Klein CL800 and CL900, helping you make an informed decision that will supercharge your electrical work!

Klein CL800 – Quick Rundown


  • TRMS Clamp Meter
  • AC/DC Measurement
  • Test Voltage, Resistance, Continuity, Frequency, Capacitance, Diodes
  • Low Impedance (LoZ) Mode
  • Safety Ratings: CAT IV 600V, CAT III 1000V, Class 2
  • Low Battery Indicator
  • Wide Tmperature Range
  • High Altitude Operation: Up to 6562-Foot (2000m)
  • Compatibility: Residential, Office, Light-Industrial

Alright, let’s dive into a quick rundown of the Klein CL800! This baby has impressive features, and I’m here to spill the beans.

First things first, the CL800 is all about accuracy. When it comes to current measurements, precision is key, and this meter delivers. It’s equipped with a True RMS function, which ensures accurate readings even in non-linear electrical systems. Say goodbye to those pesky stray voltages that can throw off your measurements.

One thing to note is that the CL800 has a temperature measurement capability. You can easily whip out this meter to check the temperature in a pinch. However, when it comes to the CL900, it lacks this temperature measurement feature. So, if temperature readings are crucial for your electrical adventures, the CL800 has got you covered.

When it comes to current measurement, as you rightly pointed out, every clamp meter can handle it. But what sets the CL800 apart is its precision. This meter is designed with accuracy in mind, so you can trust it to give you reliable, current readings.

Now, let’s talk about pricing. The CL800 offers a sweet spot for balancing features and cost. It provides you with a solid set of measurements and functionality without breaking the bank. So, if you’re looking for a precise clamp meter that won’t burn a hole in your pocket, the CL800 is a fantastic option.

To summarize, the Klein CL800 is a reliable and accurate clamp meter that won’t disappoint. It’s got the True RMS function to ensure accuracy, the ability to measure temperature, and a price tag that won’t make you cringe. Just keep in mind that if temperature measurement is a priority for you, the CL900 might be worth considering.

The package for the Klein CL800 includes:

  • CL800 Clamp Meter
  • Leads
  • Thermocouple/adapter
  • Batteries (x2 AAA)
  • Carry pouch


  • Accurate measurements
  • Versatile functionality
  • True RMS
  • Temperature measurement
  • Reasonable price


  • No inrush current measurement
  • Limited current range

Klein CL900 – Quick Rundown


  • Digital Clamp Meter: Measures 2000A AC/DC, 1000V AC/DC, 60 Milliohm
  • True RMS Technology
  • Safety Rating: CAT IV 600V, CAT III 1000V, Class 2
  • Backlit Display
  • Inrush Current Mode
  • Non-contact Voltage Tester
  • Low Impedance Mode
  • Multifunctional: Continuity, capacitance, diode test, etc.
  • Auto Power-Off
  • Low Battery Indicator

Alright, let’s get into the nitty-gritty of the Klein CL900 with a quick rundown! Brace yourself for some impressive features and ruggedness.

The CL900 is a beast when it comes to current measurements. With this, you can measure currents up to a whopping 2000 amperes. That’s double the capacity of the CL800! So, if you’re dealing with high current applications, the CL900 has got your back.

Another cool feature of the CL900 is its ability to measure inrush current. This is handy for tasks like checking the starting current of motors or assessing the power draw during equipment startup. Unfortunately, the CL800 doesn’t have this inrush current measurement capability, so that’s a notable advantage of the CL900.

Now, let’s talk durability. The CL900 is built like a tank and can endure some serious punishment. It’s designed to withstand extreme environmental conditions, making it a reliable companion for industrial electricians and HVAC technicians who often work in rugged settings. So, if you’re in need of a tough meter that can handle some rough and tumble, the CL900 has you covered.

The CL900’s high ranging capabilities and robust look have made it a popular choice among industrial electricians and HVAC technicians. It’s built to tackle demanding applications and provide accurate measurements in challenging environments. So, if you fall into that category, you might not need to think too much about the Klein CL800 vs CL900 debate—just grab the CL900 and get to work!

That wraps up our quick rundown of the Klein CL900. It’s a powerhouse when it comes to current measurements, offers inrush current measurement, and boasts rugged durability for demanding environments.

The package for the Klein CL900 includes:

  • CL900 Clamp Meter
  • Carrying Case
  • Manual
  • Straight input test leads
  • 2 x AAA Batteries


  • Good for measuring DC & AC amperage and voltage
  • Multiple multimeter ranges, including capacitance
  • Handy flashlight feature
  • Temperature measurement capability
  • Sturdy build for durability
  • Easy testing with fixable probe lead
  • Great price point


  • Screen may wash out at angles with backlight
  • Slightly slower on continuity tests

What Users Say About Klein CL800 and CL900

Customer reviews play a vital role in helping us gauge the true performance and user satisfaction of products like the Klein CL800 and CL900. Let’s delve into what users have to say about these clamp meters.

When it comes to the Klein CL800, users have expressed their appreciation for its accuracy and versatility. Many reviewers commend its True RMS function, which ensures precise measurements even in non-linear systems. The ability to measure temperature is also a standout feature for some users. Plus, the CL800’s reasonable price point has garnered praise, making it a cost-effective option for those in need of reliable measurements.

Now, turning our attention to the Klein CL900, users who require higher current measurements have found it to be a true gem. The CL900’s extended capacity of up to 2000 amperes has won the hearts of industrial electricians and HVAC technicians. Additionally, the inclusion of inrush current measurement capability has garnered positive feedback for its practicality in assessing equipment startup. The rugged build of the CL900 has also received appreciation, as it withstands the rigors of demanding environments.

Some users may have specific requirements that are better suited to one model over the other. For example, those who prioritize temperature measurement might lean towards the CL800, while users in high-current applications might gravitate towards the CL900.

Ultimately, customer reviews provide valuable insights and perspectives that can help you make an informed decision. So, take some time to explore the experiences and opinions of users who have put the Klein CL800 and CL900 to the test. Their firsthand accounts can offer valuable guidance in finding the clamp meter that aligns best with your needs

Final Verdict – CL800 or CL900?

After considering all the key points, it’s time for the final verdict on the Klein CL800 versus CL900 showdown.

The Klein CL800 shines as a reliable and accurate clamp meter with a great balance of features and cost. Its True RMS function ensures precise measurements, and the inclusion of temperature measurement adds versatility. Plus, the CL800’s affordability makes it an attractive option for a wide range of users.

While the Klein CL900 has its strengths, such as the ability to measure higher currents and the inclusion of inrush current measurement, it falls slightly short in terms of temperature measurement, which the CL800 handles with ease. The CL800 also holds its ground in terms of accuracy and pricing, making it a preferred choice for many.

That being said, the Klein CL900 is still a fantastic option, especially for industrial electricians and HVAC technicians who require higher current measurements and rugged durability. Its extended current capacity and ability to withstand extreme environmental conditions make it a reliable companion in demanding settings.

In conclusion, the final verdict leans in favor of the Klein CL800. Its accuracy, versatility, and cost-effectiveness make it a top contender for various electrical measurement tasks. However, if you specifically need the higher current measurements and robust build, the Klein CL900 remains a solid choice.


What is the main difference between the Klein CL800 and CL900 clamp meters?

The main difference is that the CL800 has temperature measurement capability, while the CL900 does not. Additionally, the CL900 has a higher current capacity.

Does the Klein CL800 have temperature measurement capability?

Yes, the Klein CL800 can measure temperature.

What is the maximum current capacity of the Klein CL900?

The Klein CL900 has a maximum current capacity of up to 2000 amperes.

Does the Klein CL900 offer inrush current measurement?

Yes, the Klein CL900 offers inrush current measurement capability.

How does the price of the Klein CL800 compare to the CL900?

The Klein CL800 is generally more affordable compared to the CL900.


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