












⚡ Stay ahead of the curve with Klein’s all-in-one HVAC clamp meter!
The Klein Tools CL445 HVAC Clamp Meter is a professional-grade, auto-ranging TRMS meter designed for HVAC and electrical pros. It measures AC/DC voltage, current (including inrush), resistance, continuity, frequency, capacitance, temperature via K-Type thermocouple, and more. Featuring a dual backlit display for simultaneous voltage and current readings, integrated non-contact voltage detection, and convenient hands-free options, it’s built for precision, durability, and ease of use on the job site. Complete with test leads, alligator clips, carrying case, and batteries, it’s a comprehensive tool trusted by professionals since 1857.












| ASIN | B0BL42ZS1P |
| Best Sellers Rank | #46,901 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #68 in Multi Testers |
| Brand Name | KLEIN TOOLS |
| Color | Black, Orange |
| Customer Reviews | 4.7 4.7 out of 5 stars (236) |
| Global Trade Identification Number | 00092644693786 |
| Included Components | HVAC Clamp Meter |
| Item Dimensions | 9.24 x 3.76 x 1.59 inches |
| Item Type Name | Voltage Tester |
| Item Weight | 12.64 ounces |
| Manufacturer | Klein Tools |
| Maximum Operating Voltage | 750 Volts |
| Measurement Type | Voltmeter |
| Model | CL445 |
| Power Source | Battery Powered |
| Specification Met | Cat Iv 600v,cat Iii 750v,class 2,double Insulation |
| Style Name | 1-1/2-Inch Jaw |
| UPC | 092644693786 |
| Upper Temperature Rating | 1000 Degrees Celsius |
| Warranty Description | Please refer to attached warranty document. |
N**Y
Great little clamp meter
As a pro I was a Fluke guy, but as a DIYer, I didn’t need to go that big when my 15yo meter bit the dust. Klein had great reviews so I gave it a shot when I needed something to diagnose my AC unit. Seems well built, has all the features I need and then some. Hard to beat for the price an comes with a nice storage pouch and thorough instructions.
C**B
Great meter
Solid middle-ground meter, no complaints
B**T
Great for home use
So far, this is a great tool. Does what I need it to do for a good price. I use mainly for household work, however.
R**Y
It’s worth it
Works good but feels cheap
M**A
Good tool to have.
This device works very well for checking electric and troubleshooting things. I have used it on a couple of jobs, including checking capacitors and checking for shorts. I’ve used it on the car as well and doing other electrical work sometimes very happy with it so far no problems would definitely recommend buying
G**H
Nice clamp meter for the home dyi jobs
Been looking at a clamp meter for some time. Didn’t no which one would be a good buy. Watched several videos and this one seemed the best for me. Used it for some electric work on my house, doing some wiring for a portable generator and putting in a soft start on ac unit. Came with a nice case and some test leads and batteries. For the price and functions it works for what I need it for.
R**W
More than any regular homeowner will ever need
Purchase this because I recently installed a Generac generator and I wanted to be able to take readings on my air conditioning system and my generator as well as other appliances from time to time. I also do some minor electrical work around the house and often need to do continuity tests and other AC and DC testing. I will also be attending the Generac University generator technicians course to run a side hustle business maintaining generators so this is perfect for me but it is definitely more than anyone who is just a standard homeowner will ever need. If you want a high quality tool still then I highly recommend this because you should never need another tool as long as it keeps working. Really nice padded case comes with it also which is different from every low end $35 and under meter I have ever purchased. If higher end accuracy in your readings is something that's extremely important then it's worth the money. My Harbor Freight Tools higher end version of their product does not read the same as this. The HFT gauge reads about two amps higher when clamped to the same wire.
I**R
This is a great addition to my meter group
I bought this as it serves a couple of purposes. Mainly I use it to check the inrush current on both outside HVAC units before and after soft starts being added. It also serves as a nice DMM.
E**O
Excelente producto muy práctico manejable, excelente para trabajos de aires acondicionados lo recomiendo 😉👌🏼
A**R
Has milli amps , Great quality saved a tonne over a fluke meter
م**د
ممتاز جدا
A**W
Works good, the alligator clamps it comes with to attach to the leads are loose so they fall off if you pull on them at all, other than that no complaints
M**.
Preciso, robusto y calidad en mis manos
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