The testo 770-1 is a True RMS AC/DC clamp meter designed for electricians and electrical technicians carrying out everyday testing in switch cabinets and confined spaces. Its retractable pincer arm makes it easier to clamp around conductors where access is restricted.
Versatile Everyday Electrical Testing
The testo 770-1 measures AC/DC current up to 400A and voltage up to 600V, alongside resistance, frequency and capacitance. Automatic parameter recognition helps simplify testing while continuity and diode functions support everyday fault finding.
How does the testo 770-1 stand out in everyday use?
The unique retractable clamp mechanism makes conductor access easier while True RMS measurement, starting current measurement and a large two-line display provide practical functionality for daily electrical work.
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.
