---
product_id: 52373674
title: "Kewtech Loopcheck 107 LOOPCHECK107 Mains Socket Tester with Loop Check, Grey, No Size"
brand: "kewtech"
price: "€ 123.64"
currency: EUR
in_stock: true
reviews_count: 9
url: https://www.desertcart.es/products/52373674-kewtech-loopcheck-107-loopcheck107-mains-socket-tester-with-loop-check
store_origin: ES
region: Spain
---

# Loop test at mains frequency Audible tone feedback for faults Red & green LED status indicators Kewtech Loopcheck 107 LOOPCHECK107 Mains Socket Tester with Loop Check, Grey, No Size

**Brand:** kewtech
**Price:** € 123.64
**Availability:** ✅ In Stock

## Summary

> ⚡ Don’t just test—loop in on safety with Kewtech’s smartest socket checker!

## Quick Answers

- **What is this?** Kewtech Loopcheck 107 LOOPCHECK107 Mains Socket Tester with Loop Check, Grey, No Size by kewtech
- **How much does it cost?** € 123.64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/52373674-kewtech-loopcheck-107-loopcheck107-mains-socket-tester-with-loop-check)

## Best For

- kewtech enthusiasts

## Why This Product

- Trusted kewtech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted & Reliable:** Highly rated by pros and DIYers alike, delivering peace of mind with every test.
- • **Effortless Operation:** No batteries needed—just plug into any standard UK socket and let the tester do the work.
- • **Advanced Loop Testing:** Unique mains frequency loop check detects dangerous wiring faults others miss, ensuring top-tier safety.
- • **Instant Safety Assurance:** Plug in and get immediate wiring status with clear LED indicators—no guesswork, just confidence.
- • **Polarity & RCD Verification:** Checks polarity and RCDs with measured current for comprehensive socket health diagnostics.

## Overview

The Kewtech Loopcheck 107 is a compact, battery-free mains socket tester designed for UK three-pin sockets. It performs advanced loop testing at mains frequency, verifies polarity, and tests RCDs with measured current. Featuring intuitive red and green LED indicators plus audible tones, it instantly identifies wiring faults and ensures electrical safety with professional-grade accuracy.

## Description

From the manufacturer MORE THAN JUST A SOCKET TESTER KEY FEATURES Checks correct socket outlet wiring Checks the quality of the earthing that is essential for safe installations Checks RCDs with measured current Easy to use - anything other than green needs checking out! LOOPCHECK 107 Mains Socket, Loop, RCD and Polarity Tester The Loopcheck 107 is unique in that it is the only socket tester that carries out a loop test at mains frequency to check the actual condition of the wiring. Particular emphasis is placed on detecting very dangerous wiring conditions such as reversed line (live) earth connections, disconnected wires and high earth values.

Review: Great Price - Great price for a nice piece of kit almost half of what it can be purchased in a local DIY/Trade supplier
Review: Great Tool for Quick Home Electrical Checks - Purchased this mains socket tester to quickly check the wiring and safety of the sockets around my home, and it works exactly as expected. Just plug it in and the indicators clearly show whether everything is wired correctly. The loop test and warning signals are straightforward to understand, making it easy to spot any issues without guesswork. A simple, reliable tool that gives peace of mind when checking household sockets

## Features

- Ensures maximum safety by checking quality of earth loop return path, Offers more functions than regular socket testers
- Using the device is simple - just plug it into the socket you wish to test (the device is designed to fit in standard UK three-pin plug sockets) and once connected the 107 will begin evaluate wiring status and display these results as LED indicators.
- Automatically runs wiring checks upon insertion into mains, Has Red and Green LEDs.
- Releases a continuous tone for satisfactory results. Releases a warble tone for fault.
- Checks for the polarity of the mains supply., Checks RCDs with measured current.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01L4PODU2 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 69,694 in DIY & Tools ( See Top 100 in DIY & Tools ) 167 in Multi Testers |
| Certification | ul |
| Colour | Grey |
| Customer Reviews | 4.6 4.6 out of 5 stars (838) |
| Date First Available | 1 Jan. 2010 |
| Included Components | 1 x Loopcheck 107 |
| Item Package Quantity | 1 |
| Item Weight | 80 g |
| Item model number | Loopcheck 107 |
| Manufacturer | Kewtech |
| Material | Plastic |
| Measurement Accuracy | 1 |
| Number of Pieces | 1 |
| Part Number | LOOPCHECK107 |
| Power Source | AC |
| Product Dimensions | 5.5 x 7.2 x 6.4 cm; 80 g |
| Size | No Size |
| Style | Single |

## Images

![Kewtech Loopcheck 107 LOOPCHECK107 Mains Socket Tester with Loop Check, Grey, No Size - Image 1](https://m.media-amazon.com/images/I/71df+SJl5FL.jpg)

## Questions & Answers

**Q: What is the difference of the 103 skt tester? Apart from 30 quid?**
A: The 107 does a rough  loop test ,green for less than 1.8 ohms ,and a mains reversed test.Also most usefully is the RCD test. It's great for turning the right circuit off on poorly labelled boards.If your regularly work on maintenance it worth every penny in time saved and annoyed customers .

**Q: used this only a few times and now and suddenly the amber on the earth keeps flashing  in every socket i try?**
A: It may just be that the socket is old or the earth connections are loose. I’ve replaced the sockets that had amber light and now they’re fine.

**Q: Does this tester ever need calibrated?**
A: No.  It should only be used to confirm polarity and earth continuity plus the correct operation of RCDs.  For BS7671 testing a calibrated instrument should be used giving the trip time in milli-seconds. It should be checked periodically against a known source for future use.

**Q: Is this more suited for a professional electrician?**
A: This is a handy piece of kit to have in your tool box in my view whether you're a professional electrician or DIY - provided you know what your doing. It's a better tool than the ordinary plug in tester which only checks polarity and earth problems etc. This tool tests much more and although more expensive is well worth the money.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Price
*by N***L on 1 August 2025*

Great price for a nice piece of kit almost half of what it can be purchased in a local DIY/Trade supplier

### ⭐⭐⭐⭐⭐ Great Tool for Quick Home Electrical Checks
*by S***N on 8 December 2025*

Purchased this mains socket tester to quickly check the wiring and safety of the sockets around my home, and it works exactly as expected. Just plug it in and the indicators clearly show whether everything is wired correctly. The loop test and warning signals are straightforward to understand, making it easy to spot any issues without guesswork. A simple, reliable tool that gives peace of mind when checking household sockets

### ⭐⭐⭐⭐⭐ Excellent Tester for the Price. Simple to Use.
*by M***A on 1 July 2025*

At £36.50 this was the cheapest tester I could find that included an Earth Loop Impedance check. Extremely simple to use: plug it in and turn the socket on. Green lights and continuous tone = good. Anything else bad - see enclosed leaflet. Won't trip the power unless you press the RCD test button (which is specifically to test tripping the RCD.) From another forum: less than 1.8 ohm loop impedance is considered good (green). 1.8 to 100 ohm. amber. More than 100 ohm red.

## Frequently Bought Together

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-03-15*