The Martindale IN2203 Advanced Insulation Tester is a versatile, high-performance insulation and continuity tester built for professional electricians across the UK. Ideal for installation testing and ongoing service work, it offers five selectable insulation test voltages (up to 1000V) and can measure insulation resistance up to 20 GΩ.
With additional functions including earth bond testing at 200mA, PI and DAR testing, and full AC/DC voltage and continuity checks, the IN2203 is a dependable all-in-one solution for domestic, commercial, and industrial electrical environments.
How Does the IN2203 Stand Out on Site?
Whether you're performing a routine fixed wire test or verifying insulation integrity after installation, the IN2203 delivers precision, durability and ease of use.
The housing and included rubber holster protect it from knocks while the large backlit screen keeps readings visible even in low-light areas like plant rooms or distribution boards.
You also get a quality carry case and test leads, making it a complete, field-ready kit.
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.
