Fluke FLUKE-190-104-III-S Portable Oscilloscope 100mhz 4ch

Product Description

The FLUKE FLUKE-190-104-III-S is a portable, battery-operable oscilloscope built for field service and diagnostic work in electrical, HVAC controls, and industrial environments. It delivers 100 MHz of bandwidth across 4 independent channels with an LCD display, allowing technicians to capture and compare multiple waveforms simultaneously. Vertical deflection ranges from 2 millivolts per division to 100 millivolts per division, supporting a wide range of low-level signal measurements. This instrument is designed for licensed electricians, industrial service technicians, and advanced HVAC controls specialists who require reliable waveform analysis outside the shop.

The FLUKE-190-104-III-S fits residential and commercial service applications where technicians need to diagnose variable-frequency drives, motor controls, low-voltage control circuits, and building automation systems. Its 4-channel configuration allows simultaneous monitoring of multiple signal paths, making it well suited for comparing input and output waveforms during commissioning or fault diagnosis on complex control boards and inverter-driven equipment.

Key Features

• 100 MHz bandwidth supports high-speed signal capture on industrial and HVAC control circuits
• 4 independent input channels for simultaneous multi-signal measurement
• Vertical deflection range of 2 to 100 millivolts per division for low-level signal sensitivity
• LCD display for clear waveform visualization in varied lighting conditions
• Portable form factor designed for field service use outside a lab or shop environment

Compatibility

Designed as a portable field oscilloscope for use by electrical and controls technicians across residential, commercial, and light industrial service applications.

Installation Notes

This oscilloscope is installed and operated by qualified electricians or instrumentation technicians. Always de-energize and verify circuits are safe before connecting probes to live control panels or motor drives when measurement conditions allow. Follow NEC guidelines and site-specific lockout/tagout procedures before attaching to any energized equipment. Refer to the FLUKE user manual for probe category ratings and input voltage limits before use.