Voltage Recorders | McMaster-Carr

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18 Products

Power Consumption Data Loggers

Track power consumption over time. These loggers tap into a circuit and connect with PC software to visualize energy use and generate reports. They’re often used by energy auditors and facility managers to monitor equipment runtimes, optimize HVAC performance, and troubleshoot voltage spikes.

Set the sampling interval to determine how often the logger takes measurements. A faster sampling interval will take more readings at the expense of battery life.

Measures AC Voltage and Current

A compact, economical choice for monitoring AC energy consumption. Includes test leads and a clamp-on probe for tapping into wiring without interrupting circuits. Requires one 9V battery as well as software for device setup and data exports, each sold separately.

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

Measures AC and DC Voltage

Measure, log, and track either AC or DC voltage with industry-leading accuracy. Our AC/DC logger can take as many as eight readings per second with a margin of error of just ±0.5%. Software is included for setup and analysis, along with test leads, batteries, and a USB cable to connect with your PC.

True RMS AC Calculation—True RMS loggers take more accurate AC measurements than regular loggers because they can adapt to irregular waveform readings. They’re ideal for computers, adjustable-speed drives, and other devices that distort the shape of the AC sine wave by drawing current in short pulses.

												Batteries
Data Log Cap.	AC Calculation	Electrical Phase	Electrical Safety Rating	AC Voltage, V AC	AC Voltage Accuracy	DC Voltage, V DC	DC Voltage Accuracy	Sampling Interval	Includes	For Operating System	Software Included	Included	Size	No. Req.		Each
240,000	True RMS	Single	CAT IV, 300V	0 to 600	-0.5% to 0.5%	0 to 600	0.5%	125 ms to 24 hr.	Test Leads with Alligator Clips, USB Cord	Windows 10 or Earlier	Yes	Yes	AA	2	0000000	0000000

Fluke Oscilloscope/Multimeters

Image of Product. Front orientation. Oscilloscope/Multimeters.

Perform electrical tests, record data, and see a graph of electrical waveforms with this combination multimeter and oscilloscope. Fluke oscilloscope/multimeters 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 oscilloscope/multimeter is most accurate when the frequency is at least five times the maximum signal frequency you intend to measure.

True RMS AC Calculation—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—Display count is an industry designation and not an actual value. This 5,000-count oscilloscope/multimeter shows numbers up to 4,999.

	No. of Digital Channels	Freq., MHz	Electrical Safety Rating	Max. AC Voltage, V AC	Max. DC Voltage, V DC	DC Voltage Accuracy	Display Count	Data Log Cap.	Includes	Certification	Measures	Batteries Included		Each
True RMS AC Calculation


	123B	2	0 to 20	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 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.

True RMS AC Calculation—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.

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

Display Count—Display count is an industry designation and not an actual value. For example, a 6,000-count multimeter shows numbers up to 5,999. A higher display count means the multimeter can give a more precise measurement.

Software—To download and analyze data on a computer, software is required (not included). Connect your multimeter to a computer with the included USB cord.

													Multimeters		Multimeters with Calibration Certificate
	Mfr. Model No.	Data Log Cap.	Electrical Safety Rating	Measures	Max. AC Voltage, V AC	Max. DC Voltage, V DC	DC Voltage Accuracy	Max. AC Current, amp	Max. DC Current, amp	Hardware Features	Display Count	Includes		Each		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	0000000	0000000
		289	15,000	CAT IV, 600V	AC Current, AC Voltage, Capacitance, DC Current, DC Voltage, Frequency, Impedance, Resistance, Temperature	1,000	1,000	0.025%	10	10	Overload Protection	50,000	Alligator Clips, Test Leads	0000000	000000	0000000	00000000

Fluke Test Lead Sensors

Model Number 80BK-A

Take temperature readings with a Fluke multimeter.

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

Mfr. Model No.	For Fluke Model No.	Temp. Range, ° F	Test End Component	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 Standard Banana Jack	39"	PTFE	0000000	000000

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.

Mfr. Model No.	For Fluke Model No.	AC Voltage, V AC	DC Voltage, V DC	Current, amp	Electrical 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

Magnetic Fluke Multimeter Hangers

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

Mfr. Model No.	For Fluke Model No.		Each
TPAK	77IV, 83V, 87V, 88V, 113, 114, 115, 116, 117, 175, 177, 179, 233, 287, 289, 789, 1577, 1587	0000000	000000

Fluke Multimeter Cases


Fabric Case	Tool Bag

Mfr. Model No.	Case Type	For Fluke Model No.		Each
C116	Fabric Case	233, 287, 289	0000000	000000
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