The 390B series from B&K Precision includes high quality true RMS handheld digital multimeters specifically designed for accurate measurements in a wide range of applications. This series offers comprehensive measurement functions, including DC and AC voltage (DCV, ACV), DC and AC current (DCI, ACI), resistance, capacitance, frequency, diode test, temperature measurement and continuity testing.
The 390B series multimeters are ideal for technicians and engineers in areas such as electronics development, industrial maintenance, power supply and laboratory use. Thanks to their robust design with a dirt and water-resistant housing and a rubberized protective cover, they are also suitable for use in demanding environments.
Key features of the series:
- True RMS AC and AC+DC measurements for precise results
- Up to 100.000 counts on a dual display with analog bar graph
- Automatic voltage detection (AutoV/LoZ) and high frequency rejection mode (HFR)
- Bluetooth connectivity for wireless data logging (model 390B only)
- Isolated USBinterface for remote monitoring and data logging
- CAT III 1000 V / CAT IV 600 V protection for high safety
The Handheld Multimeter 390B presented here is the most advanced variant of the 390B series and offers several additional functions compared to the 391B and 393B models. The main difference is the integrated Bluetooth connectivity, which enables wireless data transfer to mobile devices via the B&K Precision Link app. In addition, the 390B model offers a larger storage capacity for data logging (up to 40,000 readings) compared to the 20,000 readings of the other models.
Product features:
- Display: 40,000 readings
- Domain accuracy (DCV): ±0.03 %
- Data log capacity: 40.000 measured values
- Connectivity: Bluetooth & isolated USB interface
- Measurement functions: DCV, ACV, AC+DC, DCI, ACI, resistance, capacitance, frequency, diode test, temperature, continuity test
- True RMS measurements: Yes
- AutoV/LoZ mode: Yes
- High frequency suppression: Yes (800 Hz cutoff)
- Protection category: CAT III 1000 V / CAT IV 600 V
- Enclosure: Water and dirt resistant with rubberized protection
- Voltage ranges: 40 mV to 1000 V
- Current measurement ranges: 40 mA to 10 A
- Resistance measurement ranges: 400 O to 40 MO
- Temperature measurement: -200 °C to 1200 °C (with K-type thermocouple)
- Capacitance measurement: 40 nF to 40 mF
- Power supply: 4x 1.5 V AA batteries
- Dimensions: 95 mm x 207 mm x 52 mm
- Weight: 630 g