Relay Tester
Relay Tester shows a thin review moat (28 avg reviews), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Flapen Score
Top 16% of 811 Automotive niches · +8 vs the category median of 49
Is Relay Tester profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Relay Tester is a £60K/yr Amazon United Kingdom market (38K searches/yr). The top 5 brands hold 58% of demand. Verdict: Worth a look — 57/100.
Relay Tester: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Worth a look. Search demand moved -19.4% over the last 90 days and 10.4% of searches end in a purchase.
£60K
revenue / yr
Who owns the niche?
The top 5 brands hold 58% of demand, so 42% of the market is open.
42%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.1★ — the gap to enter on.
0/100
page quality · 20 products
Top Relay Tester products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
Relay Tester 12-24v Car Relas Tester 12/24v Car Relas Testser Automotive Relaye Testser Circuit System Diagnostic Repair Tool For Vehicles Rvs Boats And Campers
- Price
- £20.25
- Rating
- 4.3/5
- Reviews
- 60
- Age
- 11mo ago
DUZEPA Car Relay Tester RT01 4-Pin 5-Pin Detection Tool with LCD Display for 12V and 24V Relays in Multiple Vehicle Types and Applications
- Price
- £10.90
- Rating
- 4.1/5
- Reviews
- 20
- Age
- 9mo ago
Relay Analyzer For 12V And 24V Systems Automotive Relay Test Meter With Digital Display Power Analyzer Car for battery Tester Motorcycle Circuit Sensor Test Box
- Price
- £10.36
- Rating
- 4.2/5
- Reviews
- 19
- Age
- 1y ago
12V Automotive Relay Tester Car Electronic Relay Circuit Tester Kit Diagnostic Tools Battery Checker Universal 4PIN 5PIN Fast Testing with LED Indicator Lights for Trucks Cars Electrical System
- Price
- £9.43
- Rating
- 4.0/5
- Reviews
- 29
- Age
- 10mo ago
GEARLEADER 12V Automotive Electronic Relay Tester Car Relay Tester Universal LED Indicator Light Car Battery Checker 4PIN 5PIN Fast Testing
- Price
- £12.21
- Rating
- 3.9/5
- Reviews
- 16
- Age
- 1y ago
Trending
90-day click momentum
Automotive Relay Tester 12-24V Universal Car Battery Alternator Checker with Clips 4PIN/5PIN Fast Testing Tool with LED Indicator Circuit System Diagnostic Repair Tool for Cars Trucks RVs Boats
- Price
- £7.06
- Rating
- 3.1/5
- Reviews
- 5
- Age
- 4mo ago
DUZEPA Car Relay Tester RT01 4-Pin 5-Pin Detection Tool with LCD Display for 12V and 24V Relays in Multiple Vehicle Types and Applications
- Price
- £10.90
- Rating
- 4.1/5
- Reviews
- 20
- Age
- 9mo ago
Relay Tester 12V-24V Automotive Car Relays Tester 4 Pin 5 Pin Relay Detection Diagnostic Tool Circuit System Diagnostic Repair Tool Battery/Type-C for Auto Motorcycle Rvs Boats Campers
- Price
- £33.49
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 6mo ago
Car for battery Tester Automotive Relay Tester For 12V/24V Systems Digital for battery Analyzer with LCD Display Vehicle Circuit Testing Tool for Auto Motorcycle Marine Cars Trucks
- Price
- £11.83
- Rating
- 4.3/5
- Reviews
- 3
- Age
- 8mo ago
RT01 Automotive Relay Tester Relay Analyzer For 12V And 24V Systems Car for battery Tester Motorcycle Circuit Sensor With Digital Display (RT01-BF01)
- Price
- £9.77
- Rating
- 4.5/5
- Reviews
- 2
- Age
- 4mo ago
Newest
by launch dateAutomotive Relay Tester 12-24V Universal Car Battery Alternator Checker with Clips 4PIN/5PIN Fast Testing Tool with LED Indicator Circuit System Diagnostic Repair Tool for Cars Trucks RVs Boats
- Price
- £7.06
- Rating
- 3.1/5
- Reviews
- 5
- Age
- 4mo ago
RT01 Automotive Relay Tester Relay Analyzer For 12V And 24V Systems Car for battery Tester Motorcycle Circuit Sensor With Digital Display (RT01-BF01)
- Price
- £9.77
- Rating
- 4.5/5
- Reviews
- 2
- Age
- 4mo ago
Relay Tester 12V-24V Automotive Car Relays Tester 4 Pin 5 Pin Relay Detection Diagnostic Tool Circuit System Diagnostic Repair Tool Battery/Type-C for Auto Motorcycle Rvs Boats Campers
- Price
- £33.49
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 6mo ago
12V Relay Tester Car Fuse Tester with 4PIN/5PIN Fast Testing Clips
- Price
- £8.37
- Rating
- 3.7/5
- Reviews
- 11
- Age
- 7mo ago
Automotive Current Tester Car Circuit Relay Fuse Tester High-Precision Current Tester Fault Detection with Backlit Display 20A 48V Car Battery Tester Including a Electrical Tape
- Price
- £14.01
- Rating
- 3.5/5
- Reviews
- 2
- Age
- 7mo ago
Competition: brands, sellers & click share
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.
Brands
19 falling
Sellers
28
Top-5 brand share
58%
Top 20: 100%
Top-5 click share
55%
Top 20: 100%
Open market
36%
- OBDResource19%
- DUZEPA14%
- Cloudpower9%
- XINZHIZHU8%
- GEARLEADER7%
- Aivane6%
Relay Tester demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Top Relay Tester search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- relay tester27K/yr
- car relay tester6K/yr
- relay tester 12-24v5K/yr
What reviews say buyers love and hate about Relay Tester
What buyers mention most, as a share of all reviews.
What buyers love
90% of reviews“Easy to use”
“Well built and accurate”
“A lot better than the cheaper options on amazon”
“Tester is good excellent works well”
“it did the job”
What buyers complain about
86% of reviews“Did not work”
“Sadly I had to rate this item as 3 stars as its very cheaply made”
“One thing to note: the leads are very short”
“Does not fit relays”
“Waste of no ey”
Relay Tester return rate & reasons
Why buyers send it back, as a share of all return requests.
2.0%
Return rate
22%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Relay Tester questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
