Martindale EZ365 Socket, Earth Loop & RCD Tester

  • Detects 28 wiring faults - fast socket diagnostics
  • Non-trip earth loop test - verifies earthing safely
  • L-NE polarity swap detection - identifies serious supply faults
  • 30mA RCD trip testing - confirms RCD operation
  • High and low voltage indication - quick supply checks
  • Audible and LED fault indication - easy fault identification
Regular Price £90.00 Special Price £57.00 £47.50

Availability: In stock

Ships tomorrow if ordered in the next 13 hours and 43 minutes!

Product Code
MAREZ365

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Martindale EZ365 Socket, Earth Loop & RCD Tester

Advanced Socket Testing for Electricians and Service Engineers

The Martindale EZ365 is designed for electricians, electrical contractors, appliance service engineers and gas engineers who need a fast and reliable way to verify socket wiring, earth integrity and RCD operation. Going beyond basic socket testers, the EZ365 detects 28 socket wiring fault conditions, checks mains voltage levels and performs a non-trip earth loop impedance test, helping identify potentially dangerous earthing issues before installation, servicing or maintenance work begins.

 

Designed for Enhanced Electrical Safety Testing

Unlike standard socket testers that simply indicate the presence of an earth connection, the EZ365 measures earth loop impedance and displays results across six ranges from less than 1.7Ω to 500Ω. This allows users to verify whether the earth path is suitable for protective devices to operate correctly under fault conditions. Red LED indicators provide fast identification of wiring faults, while the built-in fault chart helps diagnose issues quickly on-site.

 

What makes the EZ365 different from a standard socket tester?

The EZ365 is classified by the Health & Safety Executive as an Advanced Socket Tester. In addition to non-trip earth loop testing, it can detect L-NE polarity swaps at the incoming supply, a serious fault that many socket testers cannot identify. It also includes a 30mA RCD trip test function and audible indication, making it an ideal tool for electrical safety checks before servicing or installing mains-powered equipment.

 

Order today to enjoy free delivery, expert support and our 90-day satisfaction guarantee. Need advice? Our team is here to assist you.

 

More Information
ManufacturerMartindale
Manufacturer Part NumberEZ365
GTIN5036162187858
Included CalibrationCall for info
Category ratingCAT II 300V
  • Product Code: EZ365
  • Product Type: Advanced Socket and Non-Trip Earth Loop Tester
  • Nominal Operating Voltage: 230V AC RMS
  • Operating Frequency: 50Hz
  • Power Consumption: <2.5W
  • Earth Loop Impedance Ranges: 0Ω 1.7Ω 5Ω 10Ω 100Ω 200Ω 500Ω
  • Earth Loop Threshold Accuracy: ±(10% + 0.3Ω)
  • Voltage Low Indication: <195V ±5%
  • Voltage High Indication: >270V ±5%
  • Earth Neutral Voltage High Indication: >30V Nominal
  • Open Earth Indication: >500Ω ±10%
  • RCD Test Current: 30mA
  • RCD Test Duration: 300ms
  • Polarity Test: Cross Polarity (L-NE Swap at Incoming Supply)
  • Dimensions: 65 x 80 x 59mm
  • Weight: 93g
  • Operating Temperature: -10°C to 40°C
  • Altitude: Up to 2000m
  • Safety Category: CAT II 300V
  • Safety Standard: BS EN 61010-1 Class II Double Insulated
  • Martindale EZ365 Advanced Socket Tester
  • Instruction Manual
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Why choose Instrotech for your electrical test equipment?

With over 40 years’ experience supporting UK electricians, technicians and engineers, Instrotech is your trusted partner for quality tools and expert service. When you purchase from us, you benefit from:

  • Free UK shipping on all orders
  • Access to our knowledgeable technical support team
  • Available calibration services to maintain safety compliance
  • A 90-day money-back guarantee for complete peace of mind

We’re committed to helping you work safely and efficiently with industry-leading products and ongoing support.