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.
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.