Field Instruments

Product Overview

The testo 770-2 TRMS Clamp Meter is an advanced, versatile electrical measurement instrument designed for electricians and maintenance professionals who need reliable diagnostics in industrial, commercial, and residential environments. Building on the core strengths of the 770 series, the 770-2 adds enhanced measurement ranges, True RMS capability, extended frequency response, and additional test functions to handle a wider range of electrical systems with precision.

Featuring automatic measurement parameter recognition, a large backlit display, and a rugged IP64-rated housing, the testo 770-2 delivers safe, accurate, and intuitive measurement performance even under challenging conditions.

Key Features

• True RMS (TRMS) Measurements – Accurate results on non-linear loads
• Automatic AC/DC Detection – Intuitive parameter recognition
• Wide Current Range up to 600 A – For larger electrical systems
• Extended Voltage Range up to 1000 V AC/DC
• Frequency & Capacitance Measurement
• Continuity & Diode Test Functions
• Low-Pass Filter – Stable readings on variable frequency drives
• Large Backlit Display (4,000 or 6,000 counts)
• IP64 Protection Class – Dust and splash resistant
• Rugged Industrial Design

Technical Specifications

Manufacturer: Testo
Model: 770-2
Type: True RMS TRMS Clamp Meter

Measurement Functions

Current (AC/DC)
• Range: 0.1 to 600 A

Voltage (AC/DC)
• Range: 1 mV – 1000 V

Resistance
• Range: 0.1 Ω – 60 MΩ

Frequency
• Range: 0.01 Hz – 9.999 kHz

Capacitance
• Range: 0.01 nF – 100 µF

Additional Tests
• Continuity check
• Diode test
• Low-pass filter for VFD/motor loads

Display & Accuracy

• Large backlit LCD for clear reading
• True RMS accuracy for precise measurement on distorted signals

Safety & Protection

• Measurement category: CAT IV 600 V / CAT III 1000 V
• Protection class: IP64
• Designed for industrial and commercial electrical use

Operating Conditions

• Operating temperature: –10 to +50 °C
• Storage temperature: –15 to +60 °C
• Approximate dimensions: 243 × 96 × 43 mm
• Weight: ~380–400 g

Scope of Supply

• testo 770-2 TRMS Clamp Meter
• Batteries
• Measuring leads
• Order No.: 0590 7702

Applications

• Current measurement in switchgear and control panels
• Troubleshooting motors and drives
• Electrical installation and commissioning
• Industrial maintenance and diagnostics
• HVAC, building services, and power distribution systems

Why Buy from FieldInstruments.lk?

• 100% genuine Testo instruments
• Competitive pricing with fast island-wide delivery
• Trusted supplier for professional electrical test equipment
• Local technical support and dedicated after-sales service

Fieldinstruments.lk
50/3, Angampitiya Rd, Ethul Kotte, Sri Lanka. 10100.
Phone: +94718555888 Email: info@fieldinstruments.lk