Extech MS420 – 20MHz 2-Channel Digital Oscilloscope

Description

The Extech MS420 by Instek is a highly portable, handheld 20 MHz digital storage oscilloscope engineered for field diagnostics, industrial maintenance, and remote electrical troubleshooting. This dual-channel instrument utilizes an integrated 3.8-inch color LCD display screen to trace, measure, and analyze low-to-medium frequency signals, control loops, and sensor lines without relying on cumbersome desktop laboratory setups.

By unifying a 20 MHz bandwidth architecture with a 100 MS/S real-time sampling rate, a 17.5 ns rise time, and a 12 kpts waveform memory depth, the instrument preserves high signal fidelity. The hardware operates completely untethered from local AC distribution networks via an internal rechargeable Li-ion battery pack, maximizing workflow efficiency across remote testing sites and on-site factory systems.

Key Features of Extech MS420

• 20 MHz System Bandwidth: Supports precise analysis, timing verification, and troubleshooting on industrial sensors, audio equipment, and low-frequency control circuits.
• Two Analog Input Channels: Provides concurrent dual-trace measurement capabilities on non-isolated inputs to track and cross-reference multiple circuit nodes.
• High-Speed 100 MS/S Sampling Rate: Utilizes an efficient 8-bit vertical resolution digitizer to accurately reconstruct signal shapes and analyze subtle timing variations.
• Intelligent Auto-Set Function: Optimizes position, range, timebase parameters, and triggering levels automatically to guarantee a stable display of virtually any wave configuration.
• 3.8-Inch Color LCD Interface: Delivers a bright, high-contrast visual display matrix to enhance multi-trace waveform inspection and measurement reading clarity in the field.
• Compact Ergonomic Enclosure: Measures 1.6 IN height, 7 IN length, and 4.4 IN width with an ultra-lightweight hardware profile of 24.3 OUNCES (1.52 LBS).
• Versatile Hardware Interface I/O: Equipped with standard analog inputs and an integrated USB interface for external communication and rapid device connection.
• CE Safety Certification Approval: Fully approved under European CE compliance frameworks to ensure strict conformance with industrial electrical safety rules.
• Limited 2-Year Warranty Plan: Standard asset protection framework that guarantees factory manufacturing quality, product authenticity, and equipment dependability support.

Automated Configuration and Waveform Optimization

The core processing layer leverages a smart internal auto-set algorithm combined with a 17.5 ns rise time to eliminate manual tuning errors during unpredictable signal evaluations. This dual-channel 8-bit vertical resolution setup allows electronics repair technicians and field engineers to capture single-shot transients and periodic waves instantly. Waveform behaviors and measurement parameters are rendered smoothly on the 3.8-inch color LCD layout, allowing operators to verify signal stability and locate design bugs immediately.

CE Certified Mobile Testing Security

Constructed to excel in tight spaces, automotive bays, and industrial processing plants, the compact physical profile fits comfortably inside a field toolkit with a transport shipping footprint of 5.80 IN height, 16.75 IN length, and 11.40 IN width. The rechargeable internal Li-ion battery pack removes dependence on local mains outlets, enabling continuous electrical inspection and diagnostic runs across long working shifts. Securing long-term institutional asset protection, the test instrument features an official 2-Year Warranty framework to ensure continuous equipment dependability and structural build support.