Voltage Data Loggers | McMaster-Carr

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68 Products

About Safety Ratings for Electrical Testing

Voltage and Current Loggers

Record data over time to monitor energy consumption and troubleshoot intermittent problems such as voltage spikes. These loggers connect to a computer to download data for later analysis.

Set the sampling interval to determine how often the logger takes measurements. True RMS loggers take more accurate AC measurements than other loggers.

Measures AC Voltage and Current

AC Voltage and Current

										Batteries
Data Log Capacity	Electrical Phase	AC Voltage	AC Voltage Accuracy	Current, A	Current Accuracy	Sampling Interval	Includes	For Operating System	Software Included	Included	Size	No. Required		Each
10,750	Single	0-500	1V	0-300	5%	1 sec. to 18 hrs.	Carrying Case, Clamp-On Probe with 1.1" Jaw Opening, Test Leads with Alligator Clips	Windows 10 and earlier	No, Required	No	9V	1	0000000	0000000

9V Battery (Pkg. of 1)	00000000	Pkg.	00000
Required Software for AC Voltage and Current Loggers (6 ft. Cord Lg.)	0000000	Each	00000

Measures AC and DC Voltage

AC and DC Voltage

Data Log Capacity	AC Calculation	Electrical Phase	Safety Rating	AC Voltage	AC Voltage Accuracy	DC Voltage	DC Voltage Accuracy	Sampling Interval	Includes	For Operating System	Software Included	Batteries Included		Each
240,000	True RMS	Single	CAT IV, 300V	0-600	0.5%	0 to 600	0.5%	125 ms to 24 hrs.	Test Leads with Alligator Clips, USB Cord	Windows 10 and earlier	Yes	Yes	0000000	0000000

Fluke Scopemeters

Perform electrical tests, record data, and see a graph of electrical waveforms with this combination multimeter and oscilloscope. Fluke scopemeters are known for quality and durability.

To download and analyze data on a computer, software is required (not included).

When used as an oscilloscope, the scopemeter is most accurate when the frequency is at least five times the maximum signal frequency you intend to measure.

The multimeter function is true RMS, so it accurately takes AC measurements regardless of the load type or sine wave shape. This is important for testing electronic devices that draw current in short pulses that can distort the shape of the wave, such as computers and adjustable-speed drives.

Display count is an industry designation and not an actual value. This 5,000-count scopemeter shows numbers up to 4,999.

True RMS AC Calculation
Manufacturer Model Number	No. of Digital Channels	Frequency	Safety Rating	Max. AC Voltage	Max. DC Voltage	DC Voltage Accuracy	Display Count	Data Log Capacity	Includes	Specifications Met	Measures	Batteries Included		Each
123B	2	0-20 MHz	CAT IV, 600V	600	600	0.5%	5,000	512	Alligator Clips, Battery Charger, BNC Adapter, Probe Tips, Test Leads	CSA Certified	AC Voltage, Capacitance, Continuity, DC Voltage, Temperature	Yes	0000000	000000000

Fluke SCC120B Software and Soft Case with Screen Protector, Magnet Hanging Kit (For Windows 10 and earlier)	0000000	Each	0000000
Replacement Test Leads (Fluke Model No. STL120-IV)	0000000	Pair	000000
Optional Fabric Case (Fluke Model No. C789)	00000000	Each	000000

Power Consumption Meters

Measure the amount of power your devices draw and calculate energy costs with these consumption meters. Plug them directly into an outlet, and plug your tool or appliance into the front of the meter. To track your power costs, enter the local price per kilowatt-hour (kWh) into the meter, and they’ll display the total amount you’re spending. They also help you monitor the quality of electricity coming from your outlet.

These meters meet U.S. and international safety standards. Rated CAT II, 150V, they can be safely used with most single-phase AC appliances and tools.

Max. Power, W	Max. AC Voltage	AC Voltage Accuracy	Max. AC Current, A	Current Accuracy	Max. Frequency, Hz	Max. Power Consumption, kWh	Max. Electrical Cost	Ht.	Wd.	Dp.	Specifications Met	Plug Type	Features		Each
1,800	150V AC	1%	15	1%	65	9,999	$9,999	5.1"	2.6"	1 1/2"	UL Listed, CSA Certified, CE Marked, ETL Listed	Three Prong	Backup Battery	0000000	000000

Fluke Data-Logging Multimeters

Record measurements from electrical tests over time to identify intermittent issues such as voltage spikes and temporary power flow problems. Review data captured by these high-quality and durable Fluke multimeters in real-time or save it for future analysis.

To download and analyze data on a computer, software is required (not included).

These true RMS multimeters take accurate AC measurements regardless of the load type or sine wave shape. This is important for testing electronic devices that draw current in short pulses that can distort the shape of the wave, such as computers and adjustable-speed drives.

Display count is an industry designation and not an actual value. These 50,000-count multimeters show numbers up to 49,999.

Multimeters with calibration certificate include a document stating that they have passed a test for accuracy.

Multimeters
Manufacturer Model Number	Data Log Capacity	Safety Rating	Measures	Max. AC Voltage	Max. DC Voltage	DC Voltage Accuracy	Max. AC Current, A	Max. DC Current, A	Hardware Features	Display Count	Includes		Each
True RMS AC Calculation
287	10,000	CAT IV, 600V	AC Current, AC Voltage, Capacitance, DC Current, DC Voltage, Frequency, Resistance, Temperature	1,000	1,000	0.025%	10	10	Overload Protection	50,000	Alligator Clips, Test Leads	0000000	0000000
289	15,000	CAT IV, 600V	AC Current, AC Voltage, Capacitance, DC Current, DC Voltage, Frequency, Low Impedance, Resistance, Temperature	1,000	1,000	0.025%	10	10	Overload Protection	50,000	Alligator Clips, Test Leads	0000000	000000
Multimeters with Calibration Certificate
True RMS AC Calculation
287	10,000	CAT IV, 600V	AC Current, AC Voltage, Capacitance, DC Current, DC Voltage, Frequency, Resistance, Temperature	1,000	1,000	0.025%	10	10	Overload Protection	50,000	Alligator Clips, Test Leads	0000000	00000000
289	15,000	CAT IV, 600V	AC Current, AC Voltage, Capacitance, DC Current, DC Voltage, Frequency, Low Impedance, Resistance, Temperature	1,000	1,000	0.025%	10	10	Overload Protection	50,000	Alligator Clips, Test Leads	0000000	00000000

Software for Fluke Multimeters

Download and analyze data from a Fluke data-logging multimeter. Connect your multimeter to a computer with the included USB cord.

Manufacturer Model Number	For Fluke Model Number	For Operating System		Each
FVF-SC2	287, 289	Windows 7 and earlier	0000000	0000000

Data-Logging Multimeters

Identify intermittent issues such as voltage spikes and temporary power flow problems—this meter records measurements from electrical tests over time. Review data in real time or save it for future analysis.

This true RMS multimeter takes accurate AC measurements regardless of the load type or sine wave shape. This is important for testing electronic devices that draw current in short pulses that can distort the shape of the wave, such as computers and adjustable-speed drives.

Display count is an industry designation and not an actual value. This 10,000-count multimeter shows numbers up to 9,999.

True RMS AC Calculation
Data Log Capacity	Safety Rating	Measures	Max. AC Voltage	Max. DC Voltage	DC Voltage Accuracy	Max. AC Current, A	Max. DC Current, A	Display Count	Includes		Each
50,000	CAT IV, 600V	AC Current, AC Voltage, Capacitance, DC Current, DC Voltage, Frequency, Resistance, Temperature	1,000	1,000	0.025%	10	10	10,000	Alligator Clips, Test Leads	0000000	0000000

Carrying Cases for Fluke Multimeters

Fabric Case

Hard Case

Leather Case

Tool Bag

Fabric Holster

Manufacturer Model Number	Case Type	For Fluke Model Number		Each
C25	Fabric Case	83V, 87V, 88V, 175, 177, 179, 787, 789, 1577, 1587	0000000	000000
C35	Fabric Case	83V, 87V, 113, 233	0000000	00000
C101	Hard Case	27 II, 28 II, 83V, 87V, 287, 1577, 1587, T5-600, T5-1000	0000000	000000
C116	Fabric Case	233, 287, 289	0000000	00000
C520A	Leather Case	T5-600, T5-1000	0000000	00000
C550	Tool Bag	27 II, 28 II, 77IV, 83V, 87V, 114, 115, 116, 117, 175, 177, 179, 233, 287, 289, 324, 355, 373, 374, 376, 381, 787, 789, 1577, 1587, 3000 FC, T5-600, T5-1000	0000000	000000
CXT170	Weatherproof Hard Case	114, 115, 116, 117, 175, 177, 179, 787, 1577, 1587	0000000	000000
CXT80	Weatherproof Hard Case	287, 289	0000000	000000
H5	Fabric Holster	T5-600, T5-1000	0000000	00000

Magnetic Hangers for Fluke Multimeters

Free up your hands while using your Fluke multimeter by suspending it from this hanger.

Manufacturer Model Number	For Fluke Model Number		Each
TPAK	77IV, 83V, 87V, 88V, 113, 114, 115, 116, 117, 175, 177, 179, 233, 287, 289, 789, 1577, 1587	0000000	000000

Fluke Test Lead Sets

FTPL-1

TL175

TL222

TL224

TL26A

TL27

TL28A

TL40

TL71

TL75

TL76

TL910

Connect to Fluke multimeters with a set of red and black test leads.

The connection end is a 4 mm banana plug, which is the standard for connecting to a multimeter.

Manufacturer Model Number	For Fluke Model Number	Test End	Connection End	AC Voltage	DC Voltage	Current, A	Safety Rating	Specifications Met	No. of Cords	Cord Lg.	Color	Test End Material		Pair
FTPL-1	289	Notched Threaded Probe Tip	Sheathed Banana Plug	1,000	1,000	10	CAT IV, 600V	CSA Certified, CSA-US Certified	2	48"	Black, Red	Nickel-Plated Brass	00000000	0000000
TL175	77IV, 113, 114, 115, 116, 117, 175, 177, 179, 233, 287, 289	Notched Threaded Probe Tip	Sheathed Banana Plug	1,000	1,000	10	CAT IV, 600V	CSA Certified, CSA-US Certified	2	48"	Black, Red	Nickel-Plated Brass	00000000	00000
TL222	83V, 87V, 787	Sheathed Banana Plug	Sheathed Banana Plug	1,000	1,000	10	CAT III, 1,000V;CAT IV, 600V	CSA Certified, CSA-US Certified	2	60"	Black, Red	Copper	00000000	00000
TL224	87V, 179, 233, 287, 107, 3000	Sheathed Banana Plug	Sheathed Banana Plug	1,000	1,000	10	CAT III, 1,000V;CAT IV, 600V	CSA Certified, CSA-US Certified	2	60"	Black, Red	Copper	00000000	00000
TL26A	83V, 87V, 179, 287, 289, 107, 88V/A	Serrated Alligator Clip	Sheathed Banana Plug	30	30	8	__	CSA Certified, CSA-US Certified	2	60"	Black, Red	Nickel-Plated Copper	00000000	00000
TL27	175, 177, 179, 787, 107	Sheathed Banana Plug	Sheathed Banana Plug	1,000	1,000	10	CAT III, 1,000V	CSA Certified, CSA-US Certified	2	60"	Black, Red	Copper	00000000	00000
TL28A	175, 177, 179, 287, 289, 107, 88V/A	Serrated Alligator Clip	Sheathed Banana Plug	30	30	10	CAT I, 30V	CSA Certified, CSA-US Certified	2	60"	Black, Red	Copper	00000000	00000
TL40	83V, 87V, 287, 289, 787, 88V/A	Retractable Probe Tip	Sheathed Banana Plug	600	600	3	CAT II, 600V	CSA Certified, CSA-US Certified	2	48"	Black, Red	Stainless Steel	00000000	00000
TL71	27 II, 28 II, 83V, 87V, 88V, 114, 115, 116, 117, 175, 177, 179, 233, 787, 789	Notched Probe Tip	Sheathed Banana Plug	1,000	1,000	10	CAT IV, 600V	CSA Certified, CSA-US Certified	2	48"	Black, Red	Nickel-Plated Brass	00000000	00000
TL75	83V, 87V, 113, 175, 177, 179, 287, 289, 787, 789	Notched Probe Tip	Sheathed Banana Plug	1,000	1,000	10	CAT IV, 600V	CSA Certified, CSA-US Certified	2	48"	Black, Red	Nickel-Plated Brass	00000000	00000
TL76	87V, 179, 287, 289, 787, 107	Pointed Threaded Probe Tip	Sheathed Banana Plug	1,000	1,000	10	CAT II, 1,000V	CSA Certified, CSA-US Certified	2	48"	Black, Red	Nickel-Plated Brass	00000000	00000
TL910	83V, 87V, 287, 289, 787	Pointed Probe Tip	Sheathed Banana Plug	1,000	1,000	3	CAT II, 1,000V	CSA Certified, CSA-US Certified	2	40"	Black, Red	Gold Plated Copper	00000000	00000

Fluke Test Lead Kits

These kits include a set of red and black Fluke test leads with a variety of interchangeable tips.

The connection end on the test leads is a 4 mm banana plug, which is the standard for connecting to a multimeter.

Manufacturer Model Number	For Fluke Model Number	AC Voltage	DC Voltage	Current, A	Safety Rating	Includes	Cord Lg.	Color		Each
TL220	27 II, 28 II, 83V, 87V, 114, 115, 116, 117, 123, 175, 177, 179, 233, 287, 289, 373, 374, 787, 789	1,000	1,000	10	CAT II, 1,000V	Two Cords with Sheathed Straight Banana Plug and Sheathed Right-Angle Banana Plug, Two Needle Tips, Two Insulated Plunger Style Alligator Clips	59"	Black, Red	0000000	0000000
TLK-225	27 II, 28 II, 83V, 87V, 175, 177, 179, 287, 289, 787, 789, 1577, 1587	1,000	1,000	1	CAT IV, 600V	Two Cords with Sheathed Straight Banana Plug and Sheathed Right-Angle Banana Plug, Two Needle Tips, Two Insulated Alligator Clips, Two Retractable Grabbers, Two Retractable Precision Grabbers, Two Retractable Precision Hooks, Pouch	59"	Black, Red	0000000	000000
TLK289	287, 289, 376, 381	1,000	1,000	3	CAT II, 1,000V	Two Cords with Sheathed Straight Banana Plug and Sheathed Right-Angle Banana Plug, Two Needle Tips, Two Insulated Alligator Clips, Two Retractable Grabbers, Two Retractable Precision Hooks, Thermocouple, Magnetic Hanger, Pouch	59"	Black, Red	0000000	000000

Fluke Test Sensors

Take temperature readings with a Fluke multimeter.

Fluke 80BK-A is a temperature probe and works with Fluke multimeters that measure temperature. It has 4 mm banana jack connection ends that attach to Fluke test leads that have 4 mm banana plugs.

Fluke 80TK is a thermocouple converter that adapts a Fluke multimeter without a temperature function to a thermometer using the included temperature probe. It has 4 mm banana plug connection ends that attach to 4 mm banana jacks on Fluke multimeters.

80BK-A

80TK

Manufacturer Model Number	For Fluke Model Number	Temperature Range, ° F	AC Voltage	DC Voltage	Test End	Connection End	Cord Lg.	Test End Insulation Material		Each
80BK-A	28 II, 87V, 116, 179, 233, 287, 289	-40° to 500°	__	__	Needle Tip	Sheathed Banana Jack	39"	PTFE	0000000	000000
80TK	27 II, 28 II, 114, 115, 116, 117, 123, 175, 177, 179, 233, 287, 289, 789	-40° to 500°	24	60	Needle Tip	Sheathed Banana Plug	39"	PTFE	0000000	000000

Build-Your-Own Test Leads

Choose your own combination of test lead tips and cords.

The connection end on the cords is a 4 mm banana plug, which is the standard for connecting to a multimeter.

Cords

	Connection End	AC Voltage	DC Voltage	Current	Safety Rating	No. of Cords	Cord Lg.	Color		Pair
A	Sheathed Banana Plug × Sheathed Banana Plug	1,000	1,000	10A	CAT III, 1,000V	2	47"	Black, Red	0000000	000000
B	Sheathed Banana Plug × Sheathed Banana Plug	1,000	1,000	10A	CAT III, 1,000V	2	47"	Black, Red	0000000	00000
C	Sheathed Banana Plug × Sheathed Banana Plug	1,000	1,000	10A	CAT III, 1,000V	2	47"	Black, Red	0000000	00000

Tips

	Test End	AC Voltage	DC Voltage	Current	Safety Rating	Color	Test End Material		Pair
D	Alligator Clip	1,000	1,000	20A	CAT II, 1,000V	Black, Red	Nickel-Plated Steel	0000000	000000
E	Alligator Clip	1,000	1,000	20A	CAT III, 1,000V	Black, Red	Nickel-Plated Brass	0000000	00000
F	Pointed Banana Plug	1,000	1,000	10A	CAT III, 1,000V	Black, Red	Nickel-Plated Brass	0000000	00000
G	Retractable Grabber	1,000	1,000	10A	CAT III, 1,000V	Black, Red	Nickel-Plated Brass	0000000	00000
H	Precision Retractable Grabber	1,000	1,000	10A	CAT II, 1,000V	Black, Red	Nickel-Plated Stainless Steel	0000000	00000
J	Retractable Hook	1,000	1,000	10A	CAT III, 1,000V	Black, Red	Nickel-Plated Copper	0000000	00000
K	Precision Retractable Hook	1,000	1,000	20A	CAT III, 1,000V	Black, Red	Nickel-Plated Brass	0000000	00000
L	Retractable Insulation Piercing Grabber	1,000	1,000	5A	CAT III, 1,000V	Black, Red	Stainless Steel	0000000	000000

Current-Sensing Test Leads

Measure current without interrupting the circuit by connecting these test leads to a multimeter or current meter.

The connection end is a 4 mm banana plug, which is the standard for connecting to a multimeter or current meter.

These test leads step down the sensed current to a level that works with a multimeter or current meter—the signal reduction ratio is the factor by which they reduce current.

Test Leads

Current Loop

Current Clamp

Measures AC Current
Test End	For Max. Cord Dia.	Connection End	AC Current, A	DC Current, A	Current Accuracy	Voltage Output Signal Per Amp Supplied	For Current Range, A	AC Voltage	Safety Rating	Frequency Range	Jaw Opening	Loop Opening	Cord Lg.	Batteries Required	Batteries Included		Each
Flexible Current Loop	__	Sheathed Banana Plug	5-3,000	__	1%	10.000 mV AC, 1.000 mV AC, 1.000 mV DC	5-300, 50-3,000	1,000	CAT IV, 600V	40 Hz-5 kHz	__	7.6"	78"	Yes	Yes	0000000	0000000
Measures AC Current and DC Current
Current Clamp	1.22"	Sheathed Banana Plug	0-1,000	0-1,000	1%	1.000 mV AC, 1.000 mV DC	0-200, 0-1,000	300	CAT III, 300V	0 Hz-10 kHz	1.25"	__	59"	Yes	Yes	00000000	000000

Fluke Test Leads

Fluke Current Clamp

Measures AC Current
Manufacturer Model Number	Test End	For Max. Cord Dia.	Connection End	AC Current, A	Current Accuracy	Current Output Signal Per Amp Supplied	For Current Range, A	AC Voltage	Safety Rating	Frequency Range	Jaw Opening	For Fluke Model Number	Cord Lg.	Batteries Required		Each
i400	Current Clamp	1.25"	Sheathed Banana Plug	1-400	2%	1.000 mA	1-400	1,000	CAT IV, 600V	5 Hz-20 kHz	1.25"	27 II, 28 II, 77IV, 83V, 87V, 179, 287, 289, 787, 789, 1577, 1587	59"	No	0000000	0000000

Test Lead Kits

Perform electrical tests with a set of red and black test leads and interchangeable tips.

The connection end on the test leads is a 4 mm banana plug, which is the standard for connecting to a multimeter.

Includes	Cord Lg.	Color	Wire Gauge		Each
Two Cords with Sheathed Straight and Sheathed Right-Angle Banana Plugs, CAT III, 1,000V, 10A Two Insulated Alligator Clips, CAT II, 1,000V, 10A Two Pointed Banana Plugs, CAT III, 1,000V, 10A Two Precision Retractable Grabbers, CAT II, 1,000V, 10A Pouch	47"	Black, Red	18	0000000	0000000
Two Cords with Sheathed Straight and Sheathed Right-Angle Banana Plugs, CAT III, 1,000V, 10A Two Alligator Clips, CAT III, 1,000V, 10A Two Pointed Banana Plugs, CAT III, 1,000V, 6A Two Retractable Precision Grabbers, CAT III, 1,000V, 4A Two Retractable Grabbers, CAT III, 1,000V, 10A Two Retractable Hooks, CAT III, 1,000V, 10A Pouch	63"	Black, Red	18	0000000	000000

Test Leads

Sheathed Right Angle Banana Plug

Sheathed Straight Banana Plug

Replace a test lead or complete a set with a red or black lead.

The connection end is a 4 mm banana plug, which is the standard for connecting to a multimeter.

Test End	Connection End	Connection End Shape	AC Voltage	DC Voltage	Current, A	Safety Rating	No. of Cords	Cord Lg.	Wire Gauge	Test End Material	Choose a Color		Each
Retractable Hook	Sheathed Banana Plug	Right Angle	300	300	5	CAT II, 300V	1	48"	18	Gold-Plated Copper	Black, Red	0000000	000000
Retractable Hook	Sheathed Banana Plug	Straight	300	300	5	CAT II, 300V	1	48"	18	Gold-Plated Copper	Black, Red	0000000	00000

Test Lead Sets

Pairs of red and black test leads are ready to connect to a multimeter or other electrical test equipment.

4 mm banana plug connection ends attach to a multimeter.

(D) Needle tip with alligator clips comes with alligator clips that screw onto the tips for two testing options with one test lead set.

Style	Test End	Connection End	AC Voltage	DC Voltage	Current, A	Safety Rating	No. of Cords	Cord Lg.	Color	Test End Material		Pair
A	Precision Retractable Hook	Banana Plug	300	300	5	CAT II, 300V	2	48"	Black, Red	Gold-Plated Copper	0000000	000000
B	Precision Retractable Hook	Banana Plug	300	300	5	CAT II, 300V	2	48"	Black, Red	Gold-Plated Copper	0000000	00000
C	Threaded Needle Tip	Banana Plug	1,000	1,000	20	CAT III, 1,000V	2	49"	Black, Red	Stainless Steel	0000000	00000
D	Threaded Needle Tip with Alligator Clip	Banana Plug	1,000	1,000	20	CAT II, 300V	2	44"	Black, Red	Stainless Steel	0000000	00000
E	Notched Probe Tip	Banana Plug	1,000	1,000	10	CAT II, 1,000V	2	48"	Black, Red	Nickel-Plated Brass	0000000	00000
F	Precision Tweezer	Two Banana Plugs	30	60	3	__	2	48"	Black	Brass	0000000	00000

Test Leads with Reel

Extend the distance between your multimeter and the equipment you’re testing.

One end of the test leads is a 4 mm banana plug, which is the standard for connecting to a multimeter. The other end is a 4 mm banana jack that attaches to test leads that have a 4 mm banana plug.

40 ft. Lg.
Cord Color	Safety Rating	Connection End	AC Voltage	DC Voltage	Current, A	Wire Gauge	Cord Insulation Material		Each
Black	CAT III, 1,000V	Sheathed Banana Plug × Sheathed Banana Jack	1,000	1,000	20	18	Silicone Rubber	00000000	000000
Red	CAT III, 1,000V	Sheathed Banana Plug × Sheathed Banana Jack	1,000	1,000	20	18	Silicone Rubber	00000000	00000