Relay Tester
MaybeThe average product has only 28 reviews. But shoppers spend an estimated $60K a year here, so Relay Tester is a Maybe.
- Flapen Score
- 57 / 100Top 16% of 811 Automotive niches · +8 vs the category median of 4957
- Market size
- £60K/yr38K searches / yr
- 90-day growth
- -19.4%search demand this quarter
- Competition
- 55%top-5 click share · 19 brands · 28 sellers
Flapen Score
Relay Tester against its category
The dotted line is the Automotive average. Past it, Relay Tester is stronger. Inside it, weaker.
Market
The Relay Tester market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Relay Tester 38K times last year and spent an estimated £60K. The top 5 brands take 58% of clicks. Flapen scores it 57 out of 100, a Maybe.
01 · Demand
An estimated 10.4% of those searches ended in a purchase.
Shoppers searched for this 38K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 10.4% of those searches ended in a purchase. Searches in the last 90 days moved -19.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated £60K a year.
- Searches, last 12 months
- 38K
- Growth, 90 days vs prior 90
- -19.4%
- Conversion, latest week
- 10.4%
- Market size, estimated
- £60Ka year
- Top search term
- relay tester27K searches a year
02 · Price
A sale here is worth £15.10.
Listings sell for £15.10 on average, from £7.06 to £37.62. Amazon reports units sold in ranges. This niche sold 3K to 4K a year. The average listing sells 100 to 250 of them. At £15.10 that is £2K to £4K a year per listing.
- Average price
- £15.10inside the $15 to $100 sweet spot
- Price range
- £7.06–£37.62
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 3K–4K
- Units per listing a year
- 100–250
- Revenue per listing a year
- £2K–£4K
- Returns
- 2.0%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is low.
90% of listings pay for placement with sponsored ads. 95% ship with Prime. On an average day, 8.0% of listings are out of stock. The average listing ranks #344 within Tools & Equipment. It carries 28 reviews at 4.12 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 90%
- Prime listings
- 95%
- Out of stock, average day
- 8.0%
- Average rank
- #344in Tools & Equipment
- Average rating
- 4.12 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 28per listing
- Listings tracked
- 20
04 · Newcomers
0 of last year's 12 launches cleared the first-year sales bar.
12 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 28 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 12
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 28 months
Products
Top Relay Tester products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 18, 2026. The live listing can differ.
Top sellers
by estimated 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
estimated 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 date
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

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
Competition: brands, sellers & click share
The top 5 products take an estimated 55% of clicks. Leaders hold, but buyers still shop past them.
Brands
19 falling
Sellers
28
Est. top-5 brand share
58%
Top 20: 100%
Est. top-5 click share
55%
Top 20: 100%
Open market
36%
- OBDResource19%
- DUZEPA14%
- Cloudpower9%
- XINZHIZHU8%
- GEARLEADER7%
- Aivane6%
Demand
Relay Tester search demand
Weekly searches over the year. Pick a range.
Search terms
Top Relay Tester search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- relay tester27K/yr
- car relay tester6K/yr
- relay tester 12-24v5K/yr
Reviews and returns
What reviews say buyers love and hate about Relay Tester
We read the reviews and the return reasons for every product selling here.
“Did not work”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
16 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Relay Tester questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









