Most helpful positive review
197 of 203 people found the following review helpful
I completly Love this Meter!!
on March 17, 2011
This little meter is outstanding! I own a Fluke DMM 179 and of course that meter is top of the line. But would you believe this Equus 3320 is 99% spot on with it's readings when compared to a recently calibrated Fluke 179!! I compared measurements with the Equus 3320 and the Fluke 179, in AC Voltage, DC Voltage, Resistance, and DC voltage for the Equus in the Battery test modes. It had literally almost identical readings to the Fluke! The circuit board appears to use mostly prime spec electrical components, so I suspect it will remain accurate for a long time as long as it's not abused.
This meter sells on Amazon for less than $20, and has auto ranging. This means instead of having to dial in the max value manually the meter figures out what DCV range to use (if you were measuring DC voltage for example). It's the same deal for other measurements like resistance, AC Voltage, etc, just set to that measurement type and the meter figures out the correct max range. Most auto ranging meters below $99 have slow auto ranging acquisition speed (this is the time it takes for the meter to figure out what range to use). Many of the cheaper auto ranging meters take several seconds to figure out the correct range and then display the measurement. Not the $19 Equus 3320, it was just as fast as the Fluke 179, which is a second or less in the voltage measurements, and under 2 seconds for resistance (resistance auto ranging takes slightly longer on all meters because the meter must send a small amount of current across the device under test first before trying to acquire the range).
The battery test function (which my Fluke 179 does not have) is the main reason I purchased this meter. The battery test goes beyond just measuring the voltage of the battery any cheap meter can do that all day long. The battery test function in the 3320 puts the battery under a current load (10 Milli amps for both 1.5v and 9v batteries) and then measures the voltage. This gives you a much better idea of if the battery is really good or not and will really perform in your devices. Some batteries on a bare voltage test show good voltage, but that good voltage will quickly drop to unusable levels once the battery is put under load. So testing batteries with a meter that has a battery test function is far superior to just checking it's voltage. This feature alone makes the $19 price for this meter well worth it!
As a few other reviewers have said, it can only measure 200 Milli Amps of current in AC (whereas DC can measure up to 10 Amps). Most other multimeters can measure 10 amps of DC or AC current. So if you are looking to measure any substantial AC current this is the wrong meter. In fact for any current measurements I recommend a current clamp like the ExTech 623 or ExTech 380942 since you can clamp right over a live insulated wire (while the circuit is operating) and take your measurement. With any standard multimeter (like the 3320) you have to wire it in line with the circuit first (with the circuit powered off) and then you can take your measurement. But if you are looking for a compact, accurate multimeter for your garage or home (where you will not need AC current measurements) then look no further you cannot beat the accuracy, auto ranging speed, and the price of the Equus 3320.