One device solves three major on-site problems: viewing waveforms, reading values, and capturing trends.

A dual-input digital oscilloscope, dual-channel true-RMS digital multimeter, and high-speed recording/trend analysis form the core combination of this product series. You can view waveforms and timing relationships like an oscilloscope, read voltage/current/frequency values like a multimeter, and use the recorder for long-term trend monitoring and event capture.

The biggest challenge with many intermittent faults is that “everything returns to normal as soon as you arrive.” The event detection function provided by the 120B Series is designed specifically to capture these fleeting abnormalities. When an abnormal event occurs, it must first be recorded so that later review and analysis have evidence to rely on.

The key to practical on-site use: Connect-and-View™ automatic triggering + IntellaSet™ intelligent readings.

Many people both like and fear oscilloscopes: they like them because they clearly show processes, but fear them because the setup can be complicated. The 120B Series makes this much more “field-friendly.” The documentation clearly states that Connect-and-View™ triggering can automatically trigger and display waveforms without repeatedly adjusting amplitude, time base, and trigger settings. At the same time, IntellaSet™ analyzes the signal and automatically displays key readings, helping you complete troubleshooting faster.

Industrial sites place greater emphasis on safety and durability.

For on-site electrical maintenance, safety is the first requirement. CAT IV 600 V and CAT III 750 V safety ratings are suitable for industrial measurement and testing. The IP51 protection rating makes the instrument suitable for dealing with on-site dust, light water splashes, and complex working conditions.

For engineers, whether an instrument can be taken to the site, used with confidence, and remain durable over time is one of the most important criteria for field test and measurement equipment.

Data retention and collaboration: bring on-site results back to the office and into reports.

In many companies, maintenance is not just about “testing and leaving.” Records, reviews, and reports are also required. The 120B Series can connect to computers or mobile devices via a WiFi adapter, and with FlukeView software, waveform data can be saved and copied into spreadsheets for further analysis, allowing data to be retained in a more standardized way.