Unlock professional-grade precision, durability, and safety with the Fluke 15B+ Digital Multimeter. The Fluke 15B+ packs all the core functionality you need in a digital multimeter into a portable, rugged form tool that’s easy-to-use with one hand, even with gloves on. From AC/DC voltage and current measurements up to 1000V and 10A, to comprehensive capabilities including resistance, capacitance, and frequency checks, the 15B+ is your go-to for troubleshooting a wide array of electrical issues.
The CAT III 600V safety rating provides peace of mind for everything from routine checks on electrical equipment and appliances, to checking voltage levels at power outlets or switches, to diagnosing issues with circuits. Ideal for both DIY enthusiasts and early career electricians looking to streamline their toolkit, the Fluke 15B+ is a reliable and versatile addition to your toolkit.
Large easy-to-read display with bright white backlight
Specifications
Accuracy is specified for 1 year after calibration, at operating temperatures of 18 °C to 28 °C, relative humidity at 0% to 75%. Accuracy specifications take the form of: ±(% of Reading + Number of Least Significant Digits).
Function
Range
Resolution
Accuracy
AC volts (40 Hz to 500Hz)1
4.000 V
0.001 V
1.0% + 3
40.00 V
0.01 V
400.0 V
0.1 V
1000 V
1 V
DC volts
4.000 V
0.001 V
0.5% + 3
40.00 V
0.01 V
400.0 V
0.1 V
1000 V
1 V
AC millivolts
400.0 mV
0.1 mV
3.0% + 3
DC millivolts
400.0 mV
0.1 mV
1.0% + 10
Diode test2
2.000 V
0.001 V
10%
Resistance (Ohms)
400.0 Ω
0.1 Ω
0.5% + 3
4.000 kΩ
0.001 kΩ
0.5% + 2
40.00 kΩ
0.01 kΩ
0.5% + 2
400.0 kΩ
0.1 kΩ
0.5% + 2
4.000 MΩ
0.001 MΩ
0.5% + 2
40.00 MΩ
0.01 MΩ
1.5% + 3
Capacitance3
40.00 nF
0.01 nF
2% + 5
400.0 nF
0.1 nF
2% + 5
4.000 μF
0.001 μF
5% + 5
40.00 μF
0.01 μF
5% + 5
400.0 μF
0.1 μF
5% + 5
1000 μF
1 μF
5% + 5
AC current μA (40 Hz to 400 Hz)
400.0 μA
0.1 μA
1.5% + 3
4000 μA
1 μA
AC current mA (40 Hz to 400 Hz)
40.00 mA
0.01 mA
1.5% + 3
400.0 mA
0.1 mA
AC current A (40 Hz to 400 Hz)
4.000 A
0.001 A
1.5% + 3
400.0 mA
0.1 mA
AC current A (40 Hz to 400 Hz)
4.000 A
0.001 A
1.5% + 3
10.00 A
0.01 A
DC current μA
400.0 μA
0.1 μA
1.5% + 3
4000 μA
1 μA
DC current mA
40.00 mA
0.01 mA
1.5% + 3
400.0 mA
0.1 mA
DC current A
4.000 A
0.001 A
1.5% + 3
10.00 A
0.01 A
Backlight
Yes
AC volts are specified from 1% to 100% of range. Inputs below 1% of range are not specified.
Typically, open circuit test voltage is 2.0 V and short circuit current is <0.6 mA.
Specifications do not include errors due to test lead capacitance and capacitance floor (may be up to 1.5 nF in the 40 nF range).
Function
Overload protection
Input impedance (Nominal)
Common mode rejection ratio
Normal mode rejection ratio
AC volts
1000 V 1
>10 MΩ <100 pF
>60 dB at dc, 50 Hz or 60 Hz
-
AC millivolts
400 mV
>1MΩ, <100 pF
>80 dB at 50 Hz or 60 Hz
-
DC volts
1000 V 1
>10 MΩ <100 pF
>100 dB at dc, 50 Hz or 60 Hz
>60 dB at 50 Hz or 60 Hz
DC millivolts
400 mV
>1MΩ, <100 pF
>80 dB at 50 Hz or 60 Hz
-
106 V Hz Max
General specifications
Maximum voltage between any terminal and earth ground
1000 V
Display (LCD)
4000 counts, updates 3/sec
Battery type
2 AA, NEDA 15A, IEC LR6
Battery life
500 hours minimum
Temperature
Operating
0 °C to 40 °C
Storage
-30 °C to 60 °C
Relative humidity
Operating humidity
Non-condensing (<10°C) ≤90% RH at 10 °C to 30 °C; ≤75% RH at 30 °C to 40 °C
40 MΩ range ≤80% RH at 10 °C to 30 °C; ≤70% RH at 30 °C to 40 °C
Altitude
Operating
2000 m
Storage
12,000 m
Temperature coefficient
0.1 X (specified accuracy) /°C (<18 °C or >28 °C)
Fuse protection for current inputs
440 mA, 1000 V Fast Fuse, Fluke specified part only. 11A, 1000V Fast Fuse, Fluke specified part only.
Size (H x W x L)
183 x 91 x 49.5 mm
Weight
455 g
IP rating
IP 40
Safety
IEC 61010-1, IEC61010-2-030 CAT III 600 V, Pollution Degree 2
Unlock professional-grade precision, durability, and safety with the Fluke 15B+ Digital Multimeter. The Fluke 15B+ packs all the core functionality you need in a digital multimeter into a portable, rugged form tool that’s easy-to-use with one hand, even with gloves on. From AC/DC voltage and current measurements up to 1000V and 10A, to comprehensive capabilities including resistance, capacitance, and frequency checks, the 15B+ is your go-to for troubleshooting a wide array of electrical issues.
The CAT III 600V safety rating provides peace of mind for everything from routine checks on electrical equipment and appliances, to checking voltage levels at power outlets or switches, to diagnosing issues with circuits. Ideal for both DIY enthusiasts and early career electricians looking to streamline their toolkit, the Fluke 15B+ is a reliable and versatile addition to your toolkit.
Large easy-to-read display with bright white backlight
Specifications
Accuracy is specified for 1 year after calibration, at operating temperatures of 18 °C to 28 °C, relative humidity at 0% to 75%. Accuracy specifications take the form of: ±(% of Reading + Number of Least Significant Digits).
Function
Range
Resolution
Accuracy
AC volts (40 Hz to 500Hz)1
4.000 V
0.001 V
1.0% + 3
40.00 V
0.01 V
400.0 V
0.1 V
1000 V
1 V
DC volts
4.000 V
0.001 V
0.5% + 3
40.00 V
0.01 V
400.0 V
0.1 V
1000 V
1 V
AC millivolts
400.0 mV
0.1 mV
3.0% + 3
DC millivolts
400.0 mV
0.1 mV
1.0% + 10
Diode test2
2.000 V
0.001 V
10%
Resistance (Ohms)
400.0 Ω
0.1 Ω
0.5% + 3
4.000 kΩ
0.001 kΩ
0.5% + 2
40.00 kΩ
0.01 kΩ
0.5% + 2
400.0 kΩ
0.1 kΩ
0.5% + 2
4.000 MΩ
0.001 MΩ
0.5% + 2
40.00 MΩ
0.01 MΩ
1.5% + 3
Capacitance3
40.00 nF
0.01 nF
2% + 5
400.0 nF
0.1 nF
2% + 5
4.000 μF
0.001 μF
5% + 5
40.00 μF
0.01 μF
5% + 5
400.0 μF
0.1 μF
5% + 5
1000 μF
1 μF
5% + 5
AC current μA (40 Hz to 400 Hz)
400.0 μA
0.1 μA
1.5% + 3
4000 μA
1 μA
AC current mA (40 Hz to 400 Hz)
40.00 mA
0.01 mA
1.5% + 3
400.0 mA
0.1 mA
AC current A (40 Hz to 400 Hz)
4.000 A
0.001 A
1.5% + 3
400.0 mA
0.1 mA
AC current A (40 Hz to 400 Hz)
4.000 A
0.001 A
1.5% + 3
10.00 A
0.01 A
DC current μA
400.0 μA
0.1 μA
1.5% + 3
4000 μA
1 μA
DC current mA
40.00 mA
0.01 mA
1.5% + 3
400.0 mA
0.1 mA
DC current A
4.000 A
0.001 A
1.5% + 3
10.00 A
0.01 A
Backlight
Yes
AC volts are specified from 1% to 100% of range. Inputs below 1% of range are not specified.
Typically, open circuit test voltage is 2.0 V and short circuit current is <0.6 mA.
Specifications do not include errors due to test lead capacitance and capacitance floor (may be up to 1.5 nF in the 40 nF range).
Function
Overload protection
Input impedance (Nominal)
Common mode rejection ratio
Normal mode rejection ratio
AC volts
1000 V 1
>10 MΩ <100 pF
>60 dB at dc, 50 Hz or 60 Hz
-
AC millivolts
400 mV
>1MΩ, <100 pF
>80 dB at 50 Hz or 60 Hz
-
DC volts
1000 V 1
>10 MΩ <100 pF
>100 dB at dc, 50 Hz or 60 Hz
>60 dB at 50 Hz or 60 Hz
DC millivolts
400 mV
>1MΩ, <100 pF
>80 dB at 50 Hz or 60 Hz
-
106 V Hz Max
General specifications
Maximum voltage between any terminal and earth ground
1000 V
Display (LCD)
4000 counts, updates 3/sec
Battery type
2 AA, NEDA 15A, IEC LR6
Battery life
500 hours minimum
Temperature
Operating
0 °C to 40 °C
Storage
-30 °C to 60 °C
Relative humidity
Operating humidity
Non-condensing (<10°C) ≤90% RH at 10 °C to 30 °C; ≤75% RH at 30 °C to 40 °C
40 MΩ range ≤80% RH at 10 °C to 30 °C; ≤70% RH at 30 °C to 40 °C
Altitude
Operating
2000 m
Storage
12,000 m
Temperature coefficient
0.1 X (specified accuracy) /°C (<18 °C or >28 °C)
Fuse protection for current inputs
440 mA, 1000 V Fast Fuse, Fluke specified part only. 11A, 1000V Fast Fuse, Fluke specified part only.
Size (H x W x L)
183 x 91 x 49.5 mm
Weight
455 g
IP rating
IP 40
Safety
IEC 61010-1, IEC61010-2-030 CAT III 600 V, Pollution Degree 2
