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BK Precision 5491B Bench Digital Digital Multimeter True RMS, AC Current, AC Voltage, DC Current, DC Voltage, Resistance

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B&K Precision 5491B 4 3/4 Digit True RMS Bench Digital Multimeter

The B&K Precision model 5491B is a versatile and dependable bench-top digital multimeter. It takes typical multimeter measurements such as volts, ohms and amps with great accuracy and stability. This instrument is suitable for applications in education, service and repair and manufacturing requiring basic and reliable measurements.

This multimeter has built-in math functions and USB connectivity, features not found in other bench meters in this price category. The 5491B is an attractive choice for cost-conscious users requiring a basic and dependable meter with a broad range of extra features offered at a value price.

The LCD has a 50,000-count resolution, meaning it can display up to 49,999 units (4 3/4 digits) before the operating range needs to be changed. It meets International Electrotechnical Commission (IEC) safety standard 61010 and is certified for Category I installations up to 1000 V (which covers protected electrical equipment such as small household appliances). Also Category II installations up to 300 V (which covers large household appliances and devices connected to a fixed power supply, such as refrigerators and air conditioners).

Features and Benefits:

Up to 50,000 Count display resolution
Basic VDC accuracy of up to 0.02%
Dual display to indicate two measurements simultaneously
AC + DC True RMS
Up to 25 readings per second measurement rate
AC volt and amp measurement over wide frequency range (ACV 100 kHz/ACI 20 kHz)
Limit mode for Pass/Fail testing
Built-in math functions: Rel; Max/Min; dBm; dB; %; Hold; Compare
CATI (1000 V)/CATII (300 V) Protection
USB (Virtual Com) and RS232 computer interface for downloading data to a computer
SCPI compatible

Increase Productivity with PC Connectivity and Math Functions

This meter enhances your productivity with built-in math functions and USB connectivity, features not found in other bench meters in this price category. Math operations Rel, Max/Min, dBm, dB, Percent (%), and Hold provide educators with a convenient tool to teach basic math concepts.


Service and repair
Test & measurement fields that require basic measurements

Supplied with

Test leads, power cord, spare fuse, operating manual, calibration certificate and test report

Multimeter TypeBench
Absolute Maximum AC Current Measurement20A ac
Absolute Maximum DC Current Measurement20A dc
Absolute Maximum DC Voltage Measurement1000V dc
Absolute Maximum Resistance Measurement50MΩ
Absolute Maximum AC Voltage Measurement750V ac
Functions MeasuredAC Current, AC Voltage, DC Current, DC Voltage, Resistance
True RMSYes
Maximum Frequency1MHz
Display TypeDigital
Model Number p5491B
AC Current Measurement Resolution1mA ac
DC Current Measurement Resolution1mA dc
Resistance Measurement Resolution
AC Voltage Measurement Resolution1mV ac
DC Voltage Measurement Resolution1mV dc
Best DC Voltage Accuracy±0.02 %
Dimensions225 x 335 x 100mm
Best AC Current Accuracy±2.5 %
Best AC Voltage Accuracy±3 %
Safety Category LevelCAT I, CAT II
Best DC Current Accuracy±0.25 %
Best Resistance Measurement Accuracy±0.1 %
Safety Category Voltage300 V, 1000 V