Extech EX355 600V AC/DC True RMS Digital Multimeter with NCV and Temperature

The Extech EX Series EX355 is a professional, feature-rich digital multimeter designed for demanding electrical and electronic testing applications. Its true RMS capability ensures highly accurate readings even when measuring distorted or non-linear waveforms, which is crucial for modern power systems.

This versatile tool measures a comprehensive range of parameters, making it an essential instrument for electricians, engineers, and technicians. It can measure AC/DC voltage up to 600V, AC/DC current up to 10A, resistance, capacitance, frequency, temperature, duty cycle, and perform diode and continuity tests. The integrated non‑contact voltage (NCV) detector allows for the safe detection of live wires without direct contact.

Key features include a low impedance (LoZ) mode for identifying and eliminating ghost voltage readings, a clear backlit LCD display for use in low‑light conditions, and both auto‑ranging and manual range selection for flexibility. The unit is powered by two included AA batteries and comes supplied with a general‑purpose bead wire temperature probe and test leads.

Specifications at a Glance

• True RMS Measurement: For accurate readings on non‑sinusoidal waveforms.
• Measurement Ranges: DC/AC Voltage: 0.01mV – 600V | DC/AC Current: 0.1µA – 10A | Resistance: 0.1Ω – 60.00MΩ | Capacitance: 1pF – 60.00mF | Frequency: 0.001Hz – 10MHz.
• Temperature Measurement: -40 to 1000°C (‑40 to 1832°F) with included Type K bead probe.
• Additional Functions: Duty cycle (0.1‑99.9%), diode test (3.2V), continuity buzzer.
• Display: 6000‑count, 3.75‑digit backlit LCD.
• Safety Feature: Non‑contact voltage (NCV) detection.
• Special Mode: Low impedance (LoZ) for eliminating stray voltages.
• Dimensions: 175mm x 81mm x 48.5mm (6.7″ x 3.2″ x 1.9″).
• Weight: 370g (13.1oz).
• Power: 2 x AA batteries (included).