B&K 390B: True RMS Handheld Digital Multimeter

The 390B True RMS multimeter offer a comprehensive solution for general purpose measurement applications. Bundled with a complete set of accessories, these multimeter provide technicians and engineers with accurate results, data logging capabilities, and measurement features for evaluating a variety of electronics or electrical systems.

The easy to read display features an analog style bar graph to help identify measurement trends or fluctuating signals. When working in low-light environments, the auto on/off backlight adjusts for best visibility while maximizing battery life. Dual line display capabilities enable two measurements or one measurement and a math function to appear on screen simultaneously.

Advanced features like data logging records measurements to the meter’s internal memory at a user-specified sampling interval. Model 390B features wireless connectivity for logging measurement data directly to a smartphone or tablet while in the field. All models in this series provide convenient measurement monitoring and recording from a PC connected to the meter’s optical isolated USB interface. Additionally, measurements stored in the meter's internal memory can be exported using the provided PC application software.

Key Features:

• Measurement functions: DCV, ACV, AC+DC, DCI, ACI, resistance, capacitance, frequency, diode, temperature, & continuity test

• True RMS AC and AC+DC measurements

• Up to 100,000-count, dual display with analog style bar graph

• Temperature measurements using provided K-type thermocouple

• dB, dBm, limits, peak-hold, REL (Δ), MIN, MAX, and average math functions

• AutoV/LoZ mode automatically switches between AC or DC voltage measurements

• HFR (High Frequency Rejection) mode applies a low pass filter for AC measurements (800 Hz cut-off)

• Bluetooth connectivity offers live data monitoring and logging from a mobile device

• CAT III 1000 V / CAT IV 600 V protection

• Dirt and water-resistant housing with rubberized protective case

• Isolated USB interface with operating software for remote data logging

Provided application software

PC software is available for logging measurement data at specified intervals with date and time stamp. Log up to 100,000 data points in graph or table format.

Measurement data recorded in the field can be exported using the software for analysis.

B&K Precision Link APP

Model 390B supports Bluetooth connectivity for wireless measurement monitoring and data logging from a compatible Android/iOS mobile device using the B&K Precision Link APP.