





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



| 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 |
N**L
Great Price
Great price for a nice piece of kit almost half of what it can be purchased in a local DIY/Trade supplier
S**N
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
M**A
Excellent Tester for the Price. Simple to Use.
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.
T**N
Good device.
A very handy tool for some basic tests.
J**B
It seems to be a unique piece of kit. Essential...
The fist one I had stopped working after a being used about 20 times. I purchest a. Couple of them since and have given all but one of them away to people who would find them useful. As they test earth loop impedance from a 13 amp socket back to the consumer unit. I think it shows an error if it is greater than 1.5 ohms. Although I could not see that value mentioned in the instructions. Essential if you have the use of a mains pickup in a caravan or tent. Other test sockets generally do not provide this facility. If the earth impedance is higher, it could be dangerous. The metal case of a faulty appliance could experience a high voltage on its case without passing enough current to blow the fuse in the plug top on the appliance. Help!!! .
P**E
My favourite plug in tester
Buying a house or starting an EICR or responsible for a building used by others? - start with an inspection walk around and then plug this in various sockets. Gives an immediate indication of Earth loop impedance, polarity, correct wire up and RCD activation. Very useful.
D**M
A comprehensive and easy to use test device
The first socket I plugged it into was a new double socket, which was less than a year old. As expected all was good, I then went around the house and found (so far) that all sockets but one, tested perfectly. The one that didn't showed a 'Check' light on the Earth Loop test. That's the socket which is nearest the cooker and probably is a bit gunky. I'll change it in due course, even though the socket is not used for anything. Most four way block extension leads provided the 'Check' light on the earth test, interestingly newer extension leads and ones that I have recently serviced all tested as 'perfect'. I consider this to be an excellent addition to my tools and once life reverts to normal after the covid pandemic and I'm travelling on business again, this will go with me everywhere before I plug laptops etc in. i.e. a great safety check device in hotels and B&B's too.
H**P
Quality product
Works as expected. Not found a fault as wiring has been correct but device works well.
R**S
Zeer goed product
Trustpilot
5 days ago
2 weeks ago