What is the Extech 380320 Analogue Insulation Tester?
The Extech 380320 insulation tester is a high-voltage analogue megohmmeter designed for UK electricians and electrical technicians who need reliable insulation resistance testing across a wide range of installations. With selectable test voltages up to 1000 V, it enables accurate testing of cables, circuits and electrical equipment to support compliance and safety checks.
Ideal for professionals searching for insulation testers, megohmmeters or electrical test equipment in the UK, the 380320 provides dependable performance for installation testing, preventative maintenance and fault diagnosis.
How does the Extech 380320 perform in everyday use?
Built for practical site work, the 380320 features a large analogue display that makes it easy to monitor trends and detect insulation breakdown or unstable readings. Its live circuit warning enhances safety by alerting users to active voltage before testing begins.
With a lock-on test function for extended measurements and an automatic discharge circuit for added protection, it’s designed to make insulation testing safer, faster and more efficient in both domestic and industrial environments.
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 orders over £99
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.
