Metrel MI3123 Smartec Digital Earth Tester (2/3 Wire + Clamp)
What is the Metrel MI 3123 Smartec Earth / Clamp Tester?
The Metrel MI 3123 Smartec Earth / Clamp Tester is a professional earth resistance and clamp tester designed for UK electricians and electrical test engineers working on industrial, commercial and outdoor installations. It supports traditional spike testing, selective testing with clamps and fully contactless earth resistance measurement, making it ideal for testing earthing systems where disconnection is not possible.
Built to CAT IV safety standards, the MI 3123 is suited to substations, main distribution boards, lightning protection systems and large earthing networks, helping engineers verify compliance with BS 7671 and industry best practice.
How does the MI 3123 improve earth testing on site?
By combining 4-wire testing, clamp-based testing and TRMS current measurement in one instrument, the MI 3123 reduces setup time while expanding test capability. Built-in PASS/FAIL limits, bright status indicators and onboard memory allow fast decision-making during inspections, while USB and RS232 connectivity support professional reporting after testing.
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.
