The 6 Best Extech 400 AAC Clamp Meters (2023 reviews)

The Extech Ma445 true rms ac clamp meter provides the versatility of multiple meters in one convenient device. It can also measure frequency, has a data hold function, an lcd backlight, and even a flashlight. It has some great features like a flashlight, temperature lead, and an easily operated thumb-wheel that allows you to adjust it single-handedly. The front LED is handy when working in a dark service panel. It is easy and convenient to use, it gives accurate readings, and is a valuable meter to own.

The ma445 true rms clamp meter is packed with a number of different features that make taking measurements that much easier. It is ideal for a variety of commercial or industrial applications. It is easy to use with an easy visible display. The meter has everything one is likely to need and for home use its accuracy is more than adequate.

Why We Like This:

Carrying case has compartments for the included test leads and temperature probe
Excellent value, and works to spec
Probes as it measure current only and not voltage nor resistance
Just great for measuring low current, especially dc

Best With Temperature Probe: Extech True RMS AC Clamp Meter

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If you are searching to buy a popular meter for your daily usage, this product is the natural option. The Ma443 clamp on multimeter accurately features 10 basic and advanced functions and measurements allowing you to carry one meter into the field instead of several. It measures ac current, resistance, capacitance and frequency. It has a great case for carrying the various probes.

The Ma443 digital clamp meter comes complete with test leads, aaa batteries ( 3 ), and general. It comes pretty much ready to use and has the batteries included. The meter is light and can be easily carried around.

Why We Like This:

Purpose type k temperature probe, and a pouch
Relative mode for capacitance, data hold, max/min, auto power off and low battery indicator
True rms feature for accurate readings regardless of waveforms

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 designed for locked rotor amp. It has a nice bright display and very easy to read. This is a great meter for various jobs. It is built for professionals, tradesperson and diy’ers.

Why We Like This:

Functions include ncv, ac/dc voltage, ac current, resistance, capacitance, frequency, diode test, continuity
Extech ma440 clamp meter with non-contact voltage detector
Delivers what they promise

Best With Inrush: Extech Clamp Meter

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If you often find yourself confused about convenient and suitable meter, this product is your end point. The ExTech mini clamp meter has a number of great features. Not only will it measure current, but also has a InRush current mode. This clamp meter takes true rms measurements for accurate readings of noisy, distorted or non. It includes a soft pouch with a belt loop that will also protect the tool in your bag or box. It allows measurements in tight locations.

It comes with a nice storage case that has patting to help protect the meter. The display shows battery status when powering on the meter.

Why We Like This:

Beeps faster the closer you are to the strongest source, from slow to continuous
Simple to use, compact, and well made
Very nice, well-made, reasonably-priced clamp meter

Best little Meter: Extech Clamp Meter

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Extech makes beautiful and great meter with classic and smartly choosen materials. This is a must have for any good service tech. It is a compact ac/dc clamp meter with ncv detector. It uses 2 LR44 button batteries. The display is back lit for use in dark areas and allows you to easily see the display. It is small enough to fit in a shirt pocket.

The unit is well made and the housing is sturdy. It is easy to ready and has a back-light. It is a must have for any good service tech.

Why We Like This:

Complete with carrying case and two lr44 batteries
Zero function for accurate dc measurements
Low pass filter (lpf) for accurate measurement of variable frequency drive signals

Best For Electrician: Extech Great little Meter

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Compared with other products by Extech, the extech great little meter has a convenient design. It's excellent ergonomically, but also has a couple extra great features. It also has an inrush current meter, which is hugely helpful with refrigeration equipment. It comes with a nice little pouch and batteries. The screen display is large and easy to read. The tiny screw holding the battery cover in place is not captured so it will be easily lost if you are not cautious during its removal.

This is a very small clamp on meter. It functions well for detecting current in small wires, as in Auto Repair. There are four modes in all.

Why We Like This:

Easy to use and well designed with an auto-sense feature
Auto sense up to 600v ac/dc.comes with a nice little pouch and batteries
Good brand reputation