The 7 Best 400 AAC Clamp Meters (2023 reviews)

We consider a 400 aac 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 400 AAC Clamp Meter READ REVIEW

Best For HVAC: Buy: Kaiweets 400 AAC Clamp Meter READ REVIEW

Best For Pros: Buy: Amazoncommercial 400 AAC Clamp Meter READ REVIEW

Best For professionals: Buy: Extech 400 AAC Clamp Meter READ REVIEW

Best Meter: Buy: TPI 400 AAC Clamp Meter READ REVIEW

Best For Using On A boat: Buy: Sperry instruments 400 AAC Clamp Meter READ REVIEW

Best With AC Clamp Meter: Buy: Mdmprint 400 AAC Clamp Meter READ REVIEW

Best Overall: Klein Tools 400 AAC Clamp Meter

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If you often find yourself scrambling for good meter, klein tools 400 aac clamp meter is your end point. The whole purpose of a meter with a clamp is to make current measurements easy. It is good for around the house. The no touch voltage detector is a bit too sensitive but that’s good if you are not a trained electrical person. This meter is the only one that will reliably give an accurate reading on a ground or a neutral wire. It plugs into the black and red inputs and when set to temperature gives a read out with the probing voltage detector. The voltage reading is RMS and has a high sample rate for any 60hz circuit testing.

The meter features automatically ranging true root mean squared ( trms) measurement technology for accuracy. It includes a carrying case, test leads, thermocouple, and batteries. The meter features a carrying case, test leads, thermocouple, and batteries.

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

Best For HVAC: Kaiweets 400 AAC Clamp Meter

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The kaiweets 400 aac clamp meter's superior materials makes sure that it ages well with use. This is an inexpensive DC (and AC) clamp meter. It includes all needed functions, and measures dc current from the clamp via a hall effect device. The display also shares functions so you have to pay attention and press the button until you get the function you're after. It comes with a nice little carrying case, too.

This multi-meter is very versatile, it could be used by electronic techs, electricians, and HVAC. The build quality is good and it can be operated easily into the various modes with one hand. The clamp meter is very versatile and can measure both ac and dc currents with ease. This is an excellent tool for DIY enthusiasts, and anyone who needs a reliable and accurate clamp meter.

• Rugged build, and compatible with other kinds of leads
• Works great in automotive service trade
• Nice for working on dc currents such as car batteries/cables
• Led light is a nice feature, and hold button is nice too

Best For Pros: Amazoncommercial 400 AAC Clamp Meter

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Next on the list, we've got yet another meter that manages to win our hearts. It's the amazoncommercial 400 aac clamp meter and it's widely considered as meter that has the most suitable features. Readings are shown on a small but easily readable digital readout which features a one-button "hold" function for getting readings in areas where the readout can't be directly seen, or capturing a reading for later use. It provides a more accurate reading when measuring ac current and voltage. It comes with several useful attachments. There is a K-Type adapter and a bare thermocouple to take the temperature.

The high and low range feature is great and helps get more accuracy, or at least resolution. It is easy to access hard-to-reach areas and compartments. This is a great tool and is suitable for pros as well as advanced homeowners.

• Fairly basic compact typical clamp meter
• Wheel selection knob to turn on/off and cycle through modes with thumb
• Great value for a solid piece of equipment
• Handheld clamp meter for taking voltage and frequency measurements

Best For professionals: Extech 400 AAC Clamp Meter

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The Ma440 series meters are fully loaded with multimeter functions and built-in non-contact voltage (ncv) detector to meet your application needs. It is built for the professionals, tradesperson and diy’ers. It has a nice bright display and very easy to read.

The meter is light and can be easily carried around. It comes pretty much ready to use and has the batteries included. It is designed for locked rotor amp. This is a great meter for various jobs.

• Relative mode for capacitance, data hold, auto power off and low battery indicator
• Extech ma440 clamp meter with non-contact voltage detector
• Functions include ncv, ac/dc voltage, ac current, resistance, capacitance, frequency, diode test, continuity

Best Meter: TPI 400 AAC Clamp Meter

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The tpi 400 aac clamp meter's high-end materials makes sure that it ages well with use. It can be used by electrical engineers to measure properties of electrical current without physically touching or disconnecting the conductor. It has two jaws that can close around an electrical conductor up to 35mm (1.37") in diameter to measure current without touching or interrupting the circuit. It provides accurate readings when measuring linear loads, such as standard induction motors and incandescent lights, where the current or voltage has a sinusoidal waveform. It measures AC current to 400 amp, ac and dc voltage to 600v, resistance to 40 megohms, frequency to 40mhz, and capacitance to 4, 000 microfarads. It has a low-battery indicator that signals when the battery needs to be replaced. It comes with a test lead set, a 9v battery, a carrying case, and instructions.

• Meets iec safety standard 61010, and is rated for cat iii installations to 600v
• Auto-ranging multimeter for measuring current, voltage, resistance, capacitance, and frequency in electrical testing applications
• Good investment for long term

Best For Using On A boat: Sperry instruments 400 AAC Clamp Meter

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Similar to digital multi-meters, clamp meters offer a large range of functions and include LCD screens to display results but they offer the additional unique ability to measure current without having to contact live conductors. The DSA540A Sperry Instruments Snap-Around clamp meter is a 10 function, 26 range auto-ranging unit engineered to measure up to 400A AC/DC current, 600V AC/DC voltage, 40 Mohm resistance, frequency, capacitance, diode test and continuity. It includes a convenient carrying case to protect the meter and keep it clean.

This unit features a data hold and relative measurement to maintain the reading on the liquid crystal display and auto power-off functionality to extend battery life with a low batter indicator to ensure you won't get incorrect readings due to low batteries. It is great for using on a boat because it reads dc voltage and amps. It has been designed and tested and certified to cetlus with cat ii t 600 v and cat iii 300v ratings.

• Auto off function included to save you battery life
• Compact lightweight design to fit into any tool belt or small area
• Audible alert and bright led visual indication for easy identification

Best With AC Clamp Meter: Mdmprint 400 AAC Clamp Meter

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The mdmprint 400 aac clamp meter's material feels more premium than its price would suggest. The CM400A 400A AC clamp meter features an ergonomic design which greatly increases comfort and ease-of-use in a variety of applications.

• Audible continuity, data hold, low battery indicator
• Good investment for long term