The Testo 755-1 is a current-voltage tester designed for professional electricians who want to streamline electrical testing on-site. It combines voltage and current measurement in one tool, making it ideal for quick fault finding, installation testing and routine checks.
With automatic measurement detection, the tester instantly recognises whether you're checking for voltage, resistance or current with no need to switch settings. That means fewer mistakes, faster workflows and safer results.
Key Applications for UK Electricians
From domestic installs to commercial callouts, the Testo 755-1 is ideal for:
Verifying the presence of voltage
Measuring AC current up to 200 A
Continuity and resistance checks
Safe, contactless voltage detection
Whether you're fault-finding or verifying safe isolation, this tester automatically powers on when in use and identifies what you’re testing, saving time and reducing user error.
It’s a real asset when working under pressure or in low-light 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.
