Close
Amazon.com > Tools & Home Improvement > Measuring & Layout Tools > Scanners & Testers > Moisture Meters
Digital PH Meter, VANTAKOOL PH Meter 0.01 PH High Accuracy Water Quality Tester with 0-14 PH...
More product info
From VANTAKOOL
This report is out of date.
We're refreshing the the report to provide the most up-to-date data available.
This should only take a few moments.
We're refreshing the the report to provide the most up-to-date data available.
This should only take a few moments.
View/Edit Adjustment
Jump to Report Card
Report Info:
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Pass Overall Grade
FAIL
Suspicious Reviewers

WARN
Word Count Comparison

WARN
Reviewer Participation

PASS
Rating Trend

PASS
Unverified Purchases

PASS
Phrase Repetition

PASS
Overlapping Review History

PASS
Reviewer Ease

PASS
Brand Repeats

PASS
Incentivized Reviews

PASS
Deleted Reviews

Most Trusted Reviews
Item is what it stated and arrived on time, I ... [Go to full review]
Dec 5, 2014 1 of 1 found this helpful.
100%
TRUST
TRUST
-
Verified Purchaser
-
Take-Back Reviewer (6 deleted Reviews; avg. rating: 5.0)
-
Overlapping Review History: reviewed 2 of 9 top products
-
Easy Grader (avg. rating: 4.7)
Least Trusted Reviews
We couldn't find any low-quality reviews
Analysis Details
Fail
Suspicious Reviewers

Take-Back Reviewers
11 of the 44 reviewers have had at least one of their past reviews for another product deleted. This is an excessively large percentage of Take-Back Reviewers which may indicate unnatural reviews.
Warn
Word Count Comparison

-
- 32%
- Have an overrepresented word count
In the graph above, we can see the distribution of review word counts for this product and the expected distribution for this category. We see the following 1 group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 14 reviews (or 32%) are within an overrepresented word count group. While this is more reviews from overrepresented word count groups than we'd expect to see, these reviews do not appear to have a significant impact on the overall rating.
Warn
Reviewer Participation

-
- 84%
- From reviewers with an overrepresented participation
We see the following 2 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 37 reviewers (or 84%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass
Rating Trend

-
- 5%
- Created over 1 day
We counted 44 reviews for this product over the span of 4,102 days, an average of 0.0 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 1 or fewer reviews on any given day.
However, we see the following 1 day exceeding this threshold:In total, we found that 2 reviews were created on just 1 day. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass
Unverified Purchases

4 of the 44 total reviews for this product are unverified purchases. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Unverified purchases may be the result of Kindle Unlimited readers, buyers who didn't pay full price, or reviewers who did not purchase the product at Amazon. Read more about our Unverified Purchases test.
Pass
Phrase Repetition

Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
Common Phrases in Reviews:
2 reviews
(5.0/5)
(5.0/5)
1 of the 44 total reviews for this product use substantial repetitive phrases between them. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass
Overlapping Review History

Reviewers of this product have ALSO reviewed the following products:
5% also reviewed:
Let's Get Real or Let's Not Play:... by Mahan Khalsa
5% also reviewed:
KleverCase Kindle Paperwhite Case - Book Themed... by KleverCase
5% also reviewed:
Sentry Balls In-Earbuds by Sentry Industries Inc.
5% also reviewed:
TP-Link AC1750 WiFi Extender (RE450), PCMag... by TP-Link
5% also reviewed:
Sneaky Pete - Season 1 by Giovanni Ribisi
5% also reviewed:
TaoTronics Bluetooth Headphones, Wireless 4.1... by TaoTronics
5% also reviewed:
Fire HD 8 Tablet with Alexa by Amazon
5% also reviewed:
axiba by CyvenSmart
Does not include products
from the same brand
from the same brand
15 of the 44 reviewers have substantial overlapping product review history. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass
Reviewer Ease

The ease score is the average rating for all reviews that a given reviewer submits. The average ease score for reviewers of this product is 4.3, while the average ease score for reviewers in this category is 4.3.
4.3 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass
Brand Repeats

Brand Repeaters
We didn't detect a substantial amount of Brand Repeaters.
Pass
Incentivized Reviews

On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
-
- 0%
- Admitted to receiving an incentive
We didn't detect any reviews that used language indicating they were incentivized.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Pass
Deleted Reviews

- 0
- Reviews have been deleted
We have not discovered any deleted reviews for this product.
There are a few limitations to keep in mind regarding the Deleted Reviews test:
There are a few limitations to keep in mind regarding the Deleted Reviews test:
- We don't have a magic ability to collect every single deleted review; we can only identify reviews as deleted if we collect them on one date and then notice they are no longer visible on a subsequent date.
- We have no information on reviews that were never published in the first place.
- We also don't know why these reviews were removed. It could be action from the platform, personal decision by the review author, part of an entire account closure, even some data error on our part, etc.