The testo 770-3 True RMS Clamp Meter is designed for electricians, electrical maintenance technicians and HVAC engineers who need accurate current and electrical measurements in crowded switch cabinets and control panels. Its unique retractable pincer arm makes it easier to grab individual conductors in tight spaces while True RMS technology provides reliable readings on modern electrical loads.
Advanced Electrical Testing and Power Measurement
The testo 770-3 measures AC/DC current up to 600 A, AC voltage up to 1000 V, DC voltage up to 1000 V, frequency, resistance and capacitance. It also calculates power output and features improved resolution for greater precision at lower currents. Bluetooth connectivity links the meter to the testo Smart App, allowing technicians to view measurement graphs, document results and create reports directly from a smartphone or tablet.
How Does the testo 770-3 Stand Out in Everyday Use?
The retractable clamp mechanism makes testing in tightly packed switchboards easier while automatic parameter recognition helps simplify electrical measurements. Combined with power measurement, Bluetooth reporting and a large two-line display, the testo 770-3 gives electricians and technicians a versatile solution for installation work, maintenance and fault finding.
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.
