£159.00

Martindale EZ664 Socket Tester Kit with Earth Loop Test

Reddish-maroon, EZ664

Price data last checked 120 day(s) ago - refreshing...

View at Amazon

We'll watch every seller, every day. One email when your price arrives.

It has never been this cheap. We have no record of a lower price.

£159 today · cheaper than every other day in the last 8 months

NEW HERE?

Amazon shows you one price. We show you all of them.

Tosheroon watches Amazon prices so you don't have to. Every product on Amazon has a price history — we make it visible. Set the price you'd actually pay, and we'll email you the second it gets there. No app, no account, one email.

WHAT'S ON THIS PAGE

↓ Price chart
when this has been cheap or pricey
↓ Forecast
where the price is heading next
↓ Statistics
all-time high & low, recent range
↑ Price alert
name your number, we'll email you

Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 127 days • 127 data points (No recent data available)

Historical
Generating forecast...
£184.50 £156.45 £162.57 £168.69 £174.81 £180.93 £187.05 03 October 2025 03 November 2025 05 December 2025 05 January 2026 06 February 2026

Price Distribution

Price distribution over 127 days • 2 price levels

Days at Price
Current Price
64 days · current 63 days 0 16 32 48 64 £159 £184 Days at Price

Price Analysis

Most common price: £159 (64 days, 50.4%)

Price range: £159 - £184

Price levels: 2 different prices over 127 days

Description

The Martindale EZ664 gives total socket testing flexibility by being able to connect either to a standard 13 amp plug or via flying leads, ideal when testing at light fittings, fused spurs and terminals. The EZ664 uses two groups of LEDs to indicate wiring condition, mains voltage level and earth loop impedance. A group of three tricolour LEDs indicate the condition of the wiring at the socket under test or an out of tolerance supply voltage. Pass or fail and fault types are identified from the table conveniently located on the front of the tester. A key feature of the EZ664 is the ability to check the earth loop impedance of the wiring under test and indicate the measured value in six discrete ranges via three tricolour LEDs. The EZ664 measures the earth loop impedance with a 30mA or higher RCD in circuit without it tripping. The EZ664 detects and indicates if the mains voltage is below 195V or above 270V or if the neutral to earth voltage is greater than 30V. If the voltage is outside these limits loop impedance measurement will not be made.

Key Features

Complete socket testing kit

Leads for testing light fittings, fused spurs and terminals.

Indication of 28 fault conditions

Non trip earth loop impedance test

Mains voltage check

Supplied with soft carry case

Product Specifications

Model
EZ664
Colour
Reddish-maroon
Format
DIY & Tools
Domain
Amazon UK
Listed Since
21 January 2025

Barcode

No barcode data available

Similar Products You Might Like

Martindale CP201 230V 32A Industrial Socket Tester, Grey/Black/Blue, 65 x 65 x 47 mm
98% match

Martindale CP201 230V 32A Industrial Socket Tester, Grey/Black/Blue, 65 x 65 x 47 mm

Martindale

£80.50 30 Jan 2026
Martindale Electric TB118KIT1 Gas Engineer Electrical Safety Kit
97% match

Martindale Electric TB118KIT1 Gas Engineer Electrical Safety Kit

Martindale

£411.01 30 Jan 2026
Martindale CP301 110V 32A Industrial Socket Tester, Yellow/Grey, 65 x 65 x 47 mm
97% match

Martindale CP301 110V 32A Industrial Socket Tester, Yellow/Grey, 65 x 65 x 47 mm

Martindale

£80.50 08 Dec 2025
YEREADW HT107E Socket Tester - LCD, 90-250V RCD Outlet Detector
97% match

YEREADW HT107E Socket Tester - LCD, 90-250V RCD Outlet Detector

YEREADW

£14.97 18 Feb 2026
Fluke 1674 FC UK Multifunction Installation Tester
97% match

Fluke 1674 FC UK Multifunction Installation Tester

Fluke

£2,440.96 17 Feb 2026
Testavit Schuki 3 LCD socket tester and finger contact for checking the protective conductor connection (LED display, safe checking), red/black
97% match

Testavit Schuki 3 LCD socket tester and finger contact for checking the protective conductor connection (LED display, safe checking), red/black

Testboy

£46.70 16 Apr 2026
Benning 050316 ST 725 Appliance Tester
97% match

Benning 050316 ST 725 Appliance Tester

BENNING

£686.00 30 Jan 2026
Testavit Schuki 1 LCD socket tester with FI test and finger contact for checking the protective conductor connection (LED display, safe checking), red/black
97% match

Testavit Schuki 1 LCD socket tester with FI test and finger contact for checking the protective conductor connection (LED display, safe checking), red/black

Testboy

£85.60 22 Jan 2026
UK Mains Socket Tester 240v Polarity Test / 3 Pin Plug House Electrical Wiring
97% match

UK Mains Socket Tester 240v Polarity Test / 3 Pin Plug House Electrical Wiring

Lyvia

£7.99 29 Jan 2026
Proster Voltage Tester Pen - Dual 48V/12V-1000V Detector Buzzer
97% match

Proster Voltage Tester Pen - Dual 48V/12V-1000V Detector Buzzer

Proster

£11.59 16 Feb 2026
Socket Tester RCD Plug Outlet Tester, Electrical Receptacle Detector with LCD Display, 90-250V Power Socket Automatic Electric Circuit Polarity Voltage Detector Plug Breaker Finder
97% match

Socket Tester RCD Plug Outlet Tester, Electrical Receptacle Detector with LCD Display, 90-250V Power Socket Automatic Electric Circuit Polarity Voltage Detector Plug Breaker Finder

YOJOCK

£14.79 11 Feb 2026
Kewtech ACC063 Distribution Test Lead set for KT63 & JUMPLD1 Jumper link leads for insulation, R1 and R2 testing Board
97% match

Kewtech ACC063 Distribution Test Lead set for KT63 & JUMPLD1 Jumper link leads for insulation, R1 and R2 testing Board

Kewtech

Out of Stock 15 Apr 2026
Testboy TV 432A CEE adapter, electrician's tool (break-proof PE housing, can be combined with Testavit Schuki 1A, 2K and 3A, power supply via test object), red/white/blue
96% match

Testboy TV 432A CEE adapter, electrician's tool (break-proof PE housing, can be combined with Testavit Schuki 1A, 2K and 3A, power supply via test object), red/white/blue

Testboy

£47.90 24 Jan 2026
TOOLSTEK 140mm 3mm Mains Tester Plain Slot Blade Neon 100-500Volts Circuit electricians Electrical Voltage Pen Flat Screwdriver Transparent Safety Insulated Handle Pocket Clip
96% match

TOOLSTEK 140mm 3mm Mains Tester Plain Slot Blade Neon 100-500Volts Circuit electricians Electrical Voltage Pen Flat Screwdriver Transparent Safety Insulated Handle Pocket Clip

TOOLSTEK

£3.69 10 Feb 2026
KAIWEETS HT100 Voltage Tester, Dual-Range 12V-1000V/48V 1000V Non-Contact Electrical Tester, Voltage Sensitivity Electric Compact Pen with NCV, LED Flashlight, Buzzer Alarm, Wire Breakpoint Finder
96% match

KAIWEETS HT100 Voltage Tester, Dual-Range 12V-1000V/48V 1000V Non-Contact Electrical Tester, Voltage Sensitivity Electric Compact Pen with NCV, LED Flashlight, Buzzer Alarm, Wire Breakpoint Finder

KAIWEETS

£10.99 29 Jan 2026
Martindale PC104/16 3-Phase Industrial Check Plug, 16A, 4 Pin
96% match

Martindale PC104/16 3-Phase Industrial Check Plug, 16A, 4 Pin

Martindale

£114.50 09 Feb 2026
Kewtech PTKIT1 Testing Kit Includes TP4 Pins, 103DL & R2DL Socket Testers, BC/ES/GU10 Lightmate Adapters Fast Safe 4mm Lead Testing With Carry Case
96% match

Kewtech PTKIT1 Testing Kit Includes TP4 Pins, 103DL & R2DL Socket Testers, BC/ES/GU10 Lightmate Adapters Fast Safe 4mm Lead Testing With Carry Case

Kewtech

£62.99 14 Dec 2025
Kewtech TB118 Safe Isolation Kit Complete Kit with Two Pole Tester, Proving Unit, Lockout Devices & Advanced Socket Tester Designed for Gas Engineers
96% match

Kewtech TB118 Safe Isolation Kit Complete Kit with Two Pole Tester, Proving Unit, Lockout Devices & Advanced Socket Tester Designed for Gas Engineers

Kewtech

£436.99 19 Feb 2026
Trendi 2 Gang Artistic Modern Glossy 13 Amp 4x2.1mA USB Switched Plug Socket Charcoal
96% match

Trendi 2 Gang Artistic Modern Glossy 13 Amp 4x2.1mA USB Switched Plug Socket Charcoal

Trendi Switch

Out of Stock 05 Apr 2026
Kewtech KEW3PH 3 Phase Testing Adaptor, 4mm Lead Compatible Flying Lead for Industrial Plug For Continuity, Insulation & Loop Testing
96% match

Kewtech KEW3PH 3 Phase Testing Adaptor, 4mm Lead Compatible Flying Lead for Industrial Plug For Continuity, Insulation & Loop Testing

Kewtech

£79.20 16 Feb 2026
Martindale VT12PD-S Voltage Tester and Proving Unit Kit, GS38 Compliant, 12–690V AC/DC
96% match

Martindale VT12PD-S Voltage Tester and Proving Unit Kit, GS38 Compliant, 12–690V AC/DC

Martindale

£180.42 06 Feb 2026