Socket testers with earth loop impedance test, voltage test, voltage warning, socket test, from Martindale Electric, Kewtech, Socket and See. Our range of socket testers are designed for UK 230 Volt / 240 volt electrical wall sockets. Professional and Advanced socket testers also measure the effectiveness of the earth (the Earth Fault Loop Impedance). Earth Fault Loop Impedance is shown on indicator lights or a digital display. An electrical socket might have had a poor earth for years without any visible signs. But  when an appliance is plugged in, it develops a fault, then earthed metalwork on an appliance can become permanently live at a dangerous voltage. This could give an appliance user a fatal electric shock, or cause a fire with subsequent loss of property or life. 13A Socket testers can be useful in determing the safety of  electrical fixed wiring installations at the socket outlets

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Best Sellers

Martindale EZ150 E-Ze Check Xtra Earth Loop Impedance Indicator £55.20 £38.95 Martindale Buzz-IT Check Plug 13A Socket Tester BZ101 £17.50 £11.95 Socket and See SOK36 Earth / RCD Socket Tester £49.00 £39.95 Kewtech KT103 Wall Socket Checker £19.99 £14.00

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Kewtech Kewcheck KT105 Mains Wiring Tester £20.00 £17.50 Tri coloured LED Lights, Patented ‘fault locate’ shows actual position of pin,Live, Neutral or Earth, also has audible fuse finding facility.	Kewtech KT103 Wall Socket Checker £19.99 £14.00 The KT103 Socket checker indicates the condition of UK 13A Electrical Wall Sockets. It can detect 14 different faults.	Kewtech Loopcheck 106 Socket Tester £45.00 £34.95 The Kewtech Loopcheck 106 is a cost effective way of checking the parameters for safe wiring, utilising both visual and audible indication.
Kewtech Loopcheck 107 Socket Tester £55.00 £39.95 The Kewtech Loopcheck 107 checks the socket outlet wiring, quality of the earthing and the polarity of the mains supply.	Martindale Buzz-IT Check Plug 13A Socket Tester BZ101 £17.50 £11.95 Detects up to 28 faults and also has an audible warning, ideal when viewing the check plug is limited.	Martindale CP201 250V Industrial Check Plug £29.75 £23.00 250V socket tester for factory and industrial use. Simply plug into a socket outlet and the CP201 will instantly check for correct wiring.
Martindale CP301 110V Industrial Check Plug £33.80 £27.95 110V socket checker for factories and or onsite installations. Martindale CP301 110V socket tester. MARCP301	Martindale CP501 Check Plug £13.50 £9.95 The CP501 Check Plug is a fast and easy way to ensure that 13A electrical wall sockets are wired correctly. High brigtness neons indicates faults.	Martindale EZ150 E-Ze Check Xtra Earth Loop Impedance Indicator £55.20 £38.95 The only electrical UK Socket Tester measuring the earth loop impedance.
Martindale FD550 Elite Fuse Finder Kit £66.35 £53.95 The Martindale Elite Fuse Finder receiver FD550 brings microprocessor controlled multi level sensitivity to fuse and breaker identification.	Martindale FD600 Professional Fuse Finder Kit £99.50 £75.00 The Martindale FD600 Fuse Finder Kit is excellent for finding which fuse or RCD controls a circuit and can be used when there is no 240V socket.	Martindale FD650 Elite Fuse Finder Kit £108.75 £74.95 The Martindale FD650 Elite Fuse Finder Kit brings microprocessor controlled multi-level sensitivity to fuse and breaker identification.
Martindale PC101 3 Phase Check Plug £65.50 £49.00 3 phase socket tester to ensure correct and safe running of three phase motors going in the expected direction of rotation.	Martindale Standard Fuse Finder Kit - FD500 £56.95 £36.95 The Martindale Fuse Finder Kit is excellent for finding which fuse or breaker controls a circuit. Martindale FD500 Fuse Finder Kit. MARFD500	Megger MST210 Socket Tester £17.90 £14.50 The Megger MST210 socket tester is a plug-in style tester designed to identify wiring faults on UK BS1363 13A 3-pin power sockets.
Metrel TEK989 13A Socket Tester £14.95 £7.95 The Metrel TEK989 is a safe and easy to use 13A socket tester giving LED and buzzer indication of socket wiring.	Socket and See SOK12 Socket Tester £13.03 £11.45 Socket & See SOK12 Quick Test checker tests the correct wiring of UK Sockets. Detects miswires, reverse and faults fast! Cheap socket tester	Socket and See SOK22 Socket Tester £18.48 £13.95 Socket & See SOK22 checks for correct wiring of UK Sockets. Detects miswires, reverse and faults fast! It also has a Audible tone.
Socket and See SOK32 Socket Tester £25.02 £19.95 Socket & See SOK32 checks for correct wiring of UK Sockets. Detects miswires, reverse and faults fast! Ideal for 17th Edition wiring	Socket and See SOK34 Earth Loop Socket Tester £38.10 £32.95 Socket & See SOK34 checks for correct wiring of UK Sockets. Detects miswires, checks Earth Loop Impedance and doesn't trip RCD's!	Socket and See SOK36 Earth / RCD Socket Tester £49.00 £39.95 Socket & See SOK36 checks for correct wiring of UK Sockets. Detects miswires, checks Earth Loop Impedance and has a operational test of 30mA RCD's