What is the Megger DET24C Clamp-On Earth Resistance Tester?
The Megger DET24C is a clamp-on earth resistance and leakage current tester designed for UK electricians and electrical technicians who need to verify earthing systems without disconnecting live conductors. Ideal for lightning protection systems, data centres, utilities and industrial installations, it allows fast and safe testing on live earth loops.
Using its elliptical clamp and flat jaw design, the DET24C delivers reliable measurements even in dirty or outdoor environments, while eliminating the need for auxiliary stakes. Built-in noise filtering and a CAT IV 600 V safety rating ensure stable, dependable results in electrically noisy locations, making it a practical choice for routine maintenance and compliance testing.
How does the DET24C improve real-world earthing inspections?
By clamping directly around earth conductors up to 50 mm, electricians can measure both earth resistance and true RMS leakage current from 0.5 mA to 35 A in seconds, without breaking the circuit. This makes the DET24C especially effective for identifying unwanted leakage currents on live systems.
Test results are stored internally with date and time stamps and can be transferred wirelessly to a PC via Bluetooth® using Megger PowerDB or PowerDB Lite software, reducing paperwork and speeding up reporting on site. A backlit display and audible hold function further support confident measurements in low-light or hands-free working conditions.
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.
