Qfun 6 inch digital caliper review

Apr 13, 2024

REVIEW – I’m constantly measuring things in my workshop. I’ve been using a dime store plastic caliper for decades now, but just to get in the ballpark. Small rulers are getting harder for my eyes to read. Perhaps the Qfun 6 inch digital caliper with LCD display will find a home with me!

The Qfun 6 inch digital caliper has a range of up to 6 inches (150mm) and a stated resolution of 0.0005″/0.01mm. It is metal and not plastic, and is powered off a single button battery.

Material: Stainless SteelMeasuring Range: 0-150 mm/ 0-6 inchResolution: 0.01 mm/0.0005”Accuracy: ±0.02 mm/0.001”Repeatability: 0.01 mm/0.0005〞IP Protection Degree: IP54Battery: 3V CR2032 Lithium BatteryOperation Temperature: 0℃- 40℃/32-104℉

If you look around Amazon, you’ll find dozens of look-alike models. One thing that stands out with the Qfun 6 inch digital caliper is the use of the 3V CR2032 lithium battery, instead of the smaller LR44’s. The LCD display appears a little larger than average.

The box gives a clue to the origins of these Amazon calipers. There are many, many unused cutouts. I have figured out that the lower right hole fits the included spare CR2032 battery perfectly. At least they thought of it!

You don’t have to install the battery: It comes with one pre-installed! This is what the battery door looks like when removed.

The Qfun 6 inch digital caliper’s LCD display is nice and large for my aging eyes. There are three buttons: On/Off, Zero and mm/inch. I noticed the mm/inch button had zero travel or tactile feedback. You could press it to toggle between units, but you’ll hear or feel no click. The other buttons click with satisfaction.

Compared to other calipers I’ve owned, the Qfun 6 inch digital caliper actually slides smoothly with no gritty resistance. Nice!

The design allows you to take inside measurements (top), outside (middle) and depth (with the “needle”, bottom).

I don’t have any calibrated lengths, but I see no reason the calipers are inaccurate. However, if your work relies on absolute precision, you should take the time to see how accurate these are.

An unexplained washer and adhesive was included in my box. I have no explanation for this.

I took it upon myself to figure out what was wrong with the units button. I discovered that one of the three surface-mount momentary switches had failed (red circle).

The Qfun 6 inch digital caliper feels like a quality unit but the poor feel of one of the buttons is kind of a letdown. If the button was nice and clicky, I’d probably buy more of these for around the house.

Price: $35.99Where to buy: AmazonSource: The sample for this review was provided by Qfun.