Fluke 177/EFSP-NIST True RMS Digital Multimeter with backlight

The Fluke 177 True RMS Digital Multimeter is a versatile tool for electricians and technicians. It measures AC/DC voltage and current, resistance, capacitance, frequency, and temperature. Featuring a large, backlit display for clear readings in any environment, it also offers MIN/MAX/AVG recording and smooth auto-ranging for ease of use. Includes NIST-traceable calibration.

Model
Fluke 177/EFSP-NIST
Calibration
Available on request
Price
$570
Status
In stock
RFQ ref
177/EFSP-NIST
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This unit

The Fluke 177/EFSP-NIST is a True RMS digital multimeter engineered for field service professionals and technicians requiring high-accuracy electrical measurements. It delivers True RMS AC and DC voltage and current measurements alongside resistance, frequency, and capacitance capabilities. The instrument combines a 6000-count digital display with an analog bar graph and backlight for enhanced visibility across diverse lighting environments.

Technical Specifications True RMS measurement capability spans AC and DC voltage to 1000 V and current to 10 A. Resolution reaches 0.1 mV for DC/AC voltage, 10 µA for current, 0.1 Ω for resistance, and 0.01 Hz for frequency. Basic accuracy is 0.09%. The multimeter measures resistance up to 50 MΩ and capacitance to 10,000 µF. Display delivers 6000 counts across 3.75 digits with integrated analog bar graph and backlight. Operating temperature range spans 14 to 122°F (-10 to 50°C); storage from -22 to 140°F (-30 to 60°C). Dimensions are 1.7 x 3.5 x 7.3 inches (43 x 90 x 185 mm), weighing 14.8 oz (420 g). Battery life extends approximately 200 hours typical with alkaline cells (without backlight).

Key Features

Dual ranging modes: manual and automatic selection

MIN/MAX/AVG recording for statistical analysis

Auto HOLD function to freeze readings

Display HOLD capability

Continuity and diode testing functions

Closed-case calibration accessible through front panel

NIST-traceable calibration supplied as ISO Certificate with full data and uncertainties

Safety-rated CAT IV 600 V and CAT III 1000 V

Typical Applications Electrical troubleshooting, circuit verification, component characterization, and field service diagnostics. The dual safety ratings and True RMS capability suit both residential and commercial installation work.

Included Accessories Multimeter unit, test leads, 9V battery (pre-installed), user manual, and traceable calibration certificate with full data and uncertainties.

Specifications

ParameterValue
Frequency Range0.01 Hz (minimum resolution) | Voltage / Current Range: AC/DC Voltage: 0 to 1000 V
AC/DC Current0 to 10 A

Fluke 177/EFSP-NIST — Repair & Calibration Service

Aumictech offers NIST-traceable calibration and repair for the Fluke 177/EFSP-NIST. Calibration covers DC voltage accuracy at all ranges, AC voltage (True RMS) accuracy at 50 Hz, 1 kHz, and 10 kHz, DC current accuracy, resistance accuracy at all decade ranges, frequency accuracy, and diode test voltage. Fluke 87V and 289 also include capacitance and temperature calibration.. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.

Standard Cal
$450
Pass/fail cert + NIST sticker
Cal with Data
$650
Full NIST cert with measured values

Common Fluke 177/EFSP-NIST faults: blown input fuse, worn input jacks, display segment failure, relay contact wear on bench DMMs. Common faults include worn input jacks (banana socket contact wear on the mA and COM terminals), blown input fuses (especially the 440 mA HRC fuse), and display segment failures. Keithley 2000/2001/2002 bench DMMs commonly develop relay contact wear affecting resistance accuracy after extended service.

Fluke 177/EFSP-NIST price

This Fluke 177/EFSP-NIST is listed at $570. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.

Fluke 177/EFSP-NIST calibration cost

NIST-traceable calibration for the Fluke 177/EFSP-NIST is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers DC voltage accuracy at all ranges, AC voltage (True RMS) accuracy at 50 Hz, 1 kHz, and 10 kHz, DC current accuracy, resistance accuracy at all decade ranges, frequency accuracy, and diode test voltage. Fluke 87V and 289 also include capacitance and temperature calibration.. Turnaround is 1 to 3 business days after receipt. See full calibration details →

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