The 7 Best 400 A Klein Tools Digital Clamp Meters (2023 reviews)

We consider a 400 a klein tools digital clamp meter to be a worthy investment in the long run. We are here to help you choose the right one for your purposes from all the best available products in market today.

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Our Top Picks:

Best Overall: Buy: Klein Tools AC Amp Digital Clamp Meter READ REVIEW

Best For investment: Buy: 400 A Kleintools Digital Clamp Meter READ REVIEW

Best With Inrush: Buy: Klein Tools Temperature Probe READ REVIEW

Best For The money: Buy: Klein Tools new Meter READ REVIEW

Best For general Electrical Use: Buy: Klein Tools Great Meter READ REVIEW

Best For Electrician: Buy: Klein Tools Clamp Meter READ REVIEW

Best Easy To Read: Buy: Klein Tools advanced HVAC Clamp Meter READ REVIEW

Best Overall: Klein Tools AC Amp Digital Clamp Meter

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The klein tools ac amp digital clamp meter is long-lasting, rigid and fits well with your regular usage like a dream. It is a dual range non-contact tester with flashlight for a broad variety of voltage applications from 12 to 1000v ac or 70 to 1000v ac. The non-contact voltage meter is an easy and safe way to verify that power is off on a wire or outlet before starting work. The meter works to perfection and the rest of the testers are a great addition to your tool box.

The non-contact voltage tester has a built in flashlight that makes it easy to see in the dark confines of the electrical boxes, it makes a quick and safe way to check for voltage before you dive in. It fits all 3 pieces and cables together. This kit comes with all the batteries to run the tools and a handy carrying case. It’s a bonus that the other tools are included in the package. It’s a great kit to let you quickly test outlets and wires.

• Great for general and advanced electrical work
• Very handy when it comes to test different scenarios
• You can use rechargeable batteries with everything
• High quality and ease of use

Best For investment: 400 A Kleintools Digital Clamp Meter

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Compared with other products by Klein Tools, the 400 a kleintools digital clamp meter has a convenient design. This must be geared towards AC electrical use. It measures AC current and ncvt via clamp and ac/dc voltage, resistance, frequency, dc microamps, capacitance, duty cycle, diode test, and continuity via test-leads, and temperature with thermocouple. It can only read dc current via the probes up to 200ma.

It includes a carrying case, test leads with cat iii/cat iv safety caps, thermocouple, instructions, and batteries. It has a min-max feature that can hold maximum amps (or volts) detected. The non-contact voltage tester and the probe holder in the clamp are nice features. These are accurate and work well.

• Backlit lcd for ease of viewing in low light
• Made in the usa, sturdy, durable, and well made
• Automatically ranging true root mean squared (trms) measurement technology for accuracy
• Measures temperature with a k-type thermocouple probe

Best With Inrush: Klein Tools Temperature Probe

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The klein tools temperature probe has killer features for the price point. This kit is exactly what you need for most light duty HVAC work. It measures ac current, ncvt, ac/dc voltage, resistance, frequency, dc microamps, capacitance, duty cycle, diode test, continuity, and temperature. It has multiple choices for electric or hvac. It measures 0 at every voltage setting and circuit. It provides expanded operation and protection.

The NCV detector is only useful to track down shorts in wires otherwise the meters built in NCV trumps the little NCV detector. It has a backlight to work when power isn't on.

• Easy to use and just as accurate as a fluke for less
• Good back up kit for when your main stuff is broken or stolen
• A great hvac electrical kit for any technician

Best For The money: Klein Tools new Meter

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Klein Tools has been making great meter for years, thanks to a combination of clever design and appropriate materials. The no touch voltage detector is a bit too sensitive but that’s good if you are not a trained electrical person. It measures ac current and ncvt via clamp and ac/dc voltage, resistance, and continuity via test-leads, and temperature with thermocouple. It has hold, data hold, and max value. It plugs into the black and red inputs and when set to temperature gives a read out with the proble.

The voltage reading is RMS and has a high sample rate for any 60hz circuit testing. It includes a carrying case, test leads, thermocouple, and batteries. It is good for around the house. It is easy to use and very useful for appliance service work.

• Good entry level product for diy electric work
• Easy to use, strong material, heavy duty
• Middle/economy model for lighter duty use, good for around the house
• Tools are great for work, battery lasts

Best For general Electrical Use: Klein Tools Great Meter

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The klein tools great meter is capable of outshining several other products featured in this list in overall features for the price point. It can be used to test volts or amps. It measures current indirectly, through the clamp-on. It can display in amp mode. The clamp jaws are very, very large. It comes with angled plug leads which makes it even bigger overall. It has a loz mode for eliminating ghost voltage. The klein is faster and very close in accuracy but carrys way more features. It is a good value meter for general electrical use.

• Has all the features in one instrument, hard to beat that
• Lighted display, in-rush ability, auto ranging, ac and dc current measuring, nice soft case
• Easy to use and easy to read

Best For Electrician: Klein Tools Clamp Meter

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The klein tools clamp meter's high-end materials makes sure that it ages well with use. This Flexible AC Current Clamp Meter continues that tradition with its Auto-power Off, Max/Min, Hold, Auto-Ranging and Low Battery Icons. The inch flexible clamp enables measurements in areas that are difficult to access. It features a backlit LCD display, auto-power off after 15 minutes, max/min, hold, auto-ranging and low battery icons. You can fit this into the tightest places where there is no slack in the wire to read amps. It is easy to use, stand. The tool works very well and very versatile.

• Enables measurements in areas that are difficult to access
• Must have for large load electrical work
• Auto-power off after 15 minutes of non-usage conserves battery life
• Backlit lcd display for clear readings with 3000 count

Best Easy To Read: Klein Tools advanced HVAC Clamp Meter

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate meter. The product is exactly that - it's a simple product that hits all the right notes. The Klein Tools Cl445 clamp meter is an advanced hvac clamp meter with automatically ranging true root square (trms) for maximum accuracy. The meter measures ac current, inrush current, ac / dc voltage, dc microamps, resistance, continuity, frequency, capacitance, temperature, diodes, and more. The backlight stays on til you shut it off, which is how it should be. It can take your temps as well as run your numbers.

The beeper is actually loud enough to hear by older guys who've been too long in noisy environs, which a lot of od meters can't boast about. It has a cat iv rating which is also comforting. This capability has a learning curve.

• Great stuff for years as a family and company
• Dedicated mode for capturing dc micro amp and inrush current
• Delivers what they promise