The Fluke 87V (87-5) Industrial True-RMS Digital Multimeter is the instrument that A&P mechanics, MRO technicians, and industrial electricians reach for first when accuracy on non-linear loads isn't optional. With a 0.05% DC voltage accuracy rating, 4.5-digit resolution, and a selectable low-pass filter engineered specifically for variable-frequency drive (VFD) and adjustable speed drive (ASD) measurement, the 87V solves problems that averaging meters cannot even detect. It has earned its place as the global benchmark for industrial electrical troubleshooting, carried in tool kits at FAA Part 145 repair stations, airline maintenance facilities, and manufacturing plants worldwide.
Key Features
- 0.05% DC Accuracy, Best in Class: The 87V achieves 0.05% basic DC voltage accuracy, making it accurate enough for precision motor winding resistance measurements, baseline documentation, and fault verification on sensitive electronic equipment. Most industrial multimeters target 0.1-0.5% accuracy, the 87V's specification is two to ten times more precise.
- Selectable Low-Pass Filter for VFD Measurement: Variable-frequency drives and adjustable speed drives generate high-frequency carrier signals that cause standard True-RMS meters to read 20-30% high. The 87V's low-pass filter blocks carrier frequencies above 1kHz, allowing accurate fundamental voltage and frequency measurements at ASD and motor terminals, the only way to correctly diagnose motor drive performance and detect insulation degradation caused by PWM signals.
- Special Shielding Against High-Energy Drive Noise: Beyond the filter, the 87V's internal shielding blocks high-frequency, high-energy electromagnetic noise generated by large drive systems and power electronics. Technicians working near VFDs, soft starters, and inverter-fed motors get stable readings instead of erratic jumping values that mislead diagnosis.
- 250µs Peak Capture for Intermittent Faults: The Peak Min-Max function captures transients as fast as 250 microseconds, fast enough to catch voltage spikes from contactors, relay bounce, loose connections, and intermittent wiring faults that occur too quickly for the human eye to see on a standard display. Intermittent faults account for a large portion of unresolved electrical problems in industrial and aviation maintenance.
- True-RMS on Non-Linear Loads: True-RMS measurement produces accurate results on the distorted waveforms generated by variable-speed motor drives, electronic ballasts, LED power supplies, battery chargers, and any load with a switching power supply, which describes most modern aviation ground support equipment and aircraft systems. Averaging multimeters read 10-40% low on these loads.
- Full Measurement Suite in One Instrument: AC/DC voltage to 1000V, AC/DC current to 10A (20A for 30 seconds), resistance to 50MΩ, capacitance to 10,000µF, frequency to 200kHz, duty cycle, and temperature from -200°C to 1090°C with the included K-type thermocouple probe. A complete troubleshooting toolkit without instrument switching.
- Analog Bargraph with Digital Readout: The analog bargraph responds 40x faster than the digital display, allowing technicians to observe signal variations, motor speed changes, and dynamic load shifts that would otherwise be invisible on a numeric display. Critical for peaking and nulling adjustments on electronic equipment.
- Min/Max/Average Recording with Timestamp: Unattended monitoring captures the minimum, maximum, and average values over a measurement session. A&P mechanics use this to monitor circuit behavior during engine run-up without having to watch the meter continuously.
- Relative Reference Mode: Zero out background resistance to measure winding resistance differentials, cable resistance, and connector contact resistance in milliohms, essential for troubleshooting voltage drops and identifying failing contacts.
- CAT IV 600V / CAT III 1000V Safety Rating: The highest safety category available for portable instruments, rated for direct connection to service entrance, utility, and distribution panels. Critical for safe measurement on aircraft ground power units, hangar distribution systems, and industrial motor control centers.
- Holster with Integrated Test Lead Storage: The removable holster keeps test leads and probes organized and protected, converts to a hands-free hanging bracket, and provides additional drop protection. Designed for technicians who work with both hands free.
- Access Door for Calibration Without Seal Break: The battery access door allows battery replacement without disturbing the calibration seal, important for regulated maintenance environments where breaking the calibration seal triggers a mandatory recalibration event.
Technical Specifications Overview
The Fluke 87V (87-5) measures AC/DC voltage to 1000V with 0.5% AC accuracy and 0.05% DC accuracy; AC/DC current to 10A (600mA on DC milliamp range); resistance to 50MΩ; capacitance to 10,000µF; frequency to 200kHz; temperature from -200°C to 1090°C; and duty cycle from 0.1% to 99.9%. Its 4.5-digit display mode provides 19,999-count resolution for precise differential measurements. The 87V sits above the 179 series (which offers True-RMS without VFD-specific measurement capability) and below the 289 (which adds data logging and TrendCapture). For technicians who need the best general-purpose industrial meter without data logging complexity, the 87V is the correct choice.
Aviation & MRO Applications
The Fluke 87V is the most widely specified multimeter in aviation maintenance programs. Its specific capabilities align with the electrical diagnostic requirements found in FAA maintenance manuals, GSE specifications, and MRO standard operating procedures.
- Aircraft ground support equipment (GSE) electrical diagnostics, GPU troubleshooting, battery charger verification, and hangar power system diagnostics where VFD-driven equipment generates interfering signals
- Engine and APU electrical system verification, generator output measurement, starter motor current draw, and ignition system diagnostics using the True-RMS current clamp functions
- Avionics bench testing, bus voltage verification, power supply ripple measurement, and current consumption testing on avionics LRUs where 0.05% accuracy matters for specification compliance
- Motor winding continuity and resistance checks, flap actuator motors, hydraulic pump motors, and environmental control blowers using the relative resistance mode for differential measurements
- Intermittent fault hunting on aircraft wiring harnesses, the 250µs peak capture catches connector bounce, chafed wiring events, and cold solder joints that only fail during vibration
- Predictive maintenance trending, Min/Max recording during functional checks establishes electrical baselines for comparison on future inspections
Fluke 87V (87-5) Calibration
PJi operates an ISO/IEC 17025 Accredited Calibration Lab and can provide NIST-traceable calibration for the Fluke 87V. Our calibration documentation satisfies FAA Part 145 tool control requirements, ISO 9001 quality system documentation, and AS9100 calibration records. For repair stations, MRO facilities, and quality-certified shops that require documented traceability, PJi is the one-stop source: you get the instrument and you can recalibrated it at PJi.
- Calibration documentation satisfies FAA Part 145 tool control, ISO 9001 quality systems, and AS9100 records requirements
- One-stop source for repair stations, MRO facilities, and quality-certified shops — instrument and calibration certificate in a single transaction
- Calibration-only companies can't sell you the instrument. Major retailers can't calibrate it. PJi does both.
Learn more about PJi's ISO 17025 Calibration Services →
Why Buy from Pilot John International
Pilot John International is an authorized Fluke distributor with more than 20 years of specialized experience serving aviation maintenance, MRO facilities, and FAA Part 145 repair stations. Unlike Amazon, Grainger, or Test Equipment Depot, which sell Fluke instruments but offer zero calibration services, PJi operates an in-house ISO/IEC 17025 Accredited Calibration Lab that can calibrate your instrument at the time of purchase. We stock the full Fluke catalog, ship same-business-day on in-stock items, and our technical staff understands the demands of aviation and industrial electrical maintenance firsthand.
| General Information | |
|---|---|
| Part # | FLUKE-87V |
| Manufacturer | Fluke |
| Shipping Information | |
|---|---|
| Product Weight | 2.3 lbs. |
| Product Dimensions | 10 x 6 x 4 in. |
| Schedule B | 9030310000 |
| ECCN | 3A992 |
| Specifications | |
|---|---|
| AC Current Range | 0.1µA to 10A (20A for 30 seconds) |
| AC Voltage Accuracy | ±0.5% + 2 digits (45Hz–500Hz) |
| AC Voltage Range | 0.1mV to 1000V |
| Analog Bargraph | Yes (40x faster than digital update) |
| Battery Life | Approx. 400 hours |
| Battery Type | 9V (NEDA 1604, IEC 6F22) |
| Capacitance Range | 1nF to 10,000µF |
| DC Current Range | 0.1µA to 10A (20A for 30 seconds) |
| DC Voltage Accuracy | ±0.05% + 1 digit (best accuracy) |
| DC Voltage Range | 0.001V to 1000V |
| Display | 6,000 count (4.5-digit mode: 19,999 count) with analog bargraph |
| Duty Cycle | 0.1% to 99.9% |
| Frequency Range | 0.5Hz to 200kHz |
| Included Accessories | TL75 test leads, AC175 alligator clips, 80BK-A K-type thermocouple probe, holster with test lead storage, 9V battery |
| Input Impedance | 10MΩ (AC/DC voltage) |
| Low-Pass Filter | Selectable (for VFD/ASD measurement) |
| Model Number | 87V (PJi SKU: Fluke-87-5) |
| Operating Temperature | -20°C to +55°C (-4°F to +131°F) |
| Overvoltage Protection | 8,000V peak |
| Peak Capture | 250 µs (Min/Max/Peak) |
| Product Type | True-RMS Digital Multimeter |
| Resistance Range | 0.1Ω to 50MΩ |
| Safety Rating | CAT IV 600V / CAT III 1000V |
| Storage Temperature | -40°C to +60°C |
| Temperature Range | -200°C to 1090°C (-328°F to 1994°F) with K-type thermocouple |
| True-RMS | Yes |
| Warranty | Limited lifetime |
| Weight | 425g (15 oz) with holster |
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AIRCRAFT COMPATIBILITY
This item is for use on all aircraft.
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QUESTIONS & ANSWERS
The Fluke 87V digital multimeter is a high-performance troubleshooting tool designed for aviation, industrial, and electrical applications. It is commonly used to measure voltage, current, resistance, frequency, and other electrical parameters with high accuracy. Its rugged design and advanced features make it ideal for diagnosing complex electrical systems in aircraft and ground support equipment.
The Fluke 87V digital aircraft multimeter stands out for its advanced troubleshooting capabilities, including a low-pass filter and a peak capture function. These features allow technicians to accurately measure signals in noisy environments and detect intermittent issues. It is specifically designed for high-energy, demanding applications where precision and reliability are critical.
The Fluke 87V can measure a wide range of electrical parameters, including AC/DC voltage up to 1000V, current up to 10A, resistance, capacitance, frequency, duty cycle, and temperature. It also supports diode testing and continuity checks for comprehensive diagnostics. This versatility makes it a go-to tool for aircraft maintenance and electrical troubleshooting.
The Fluke 87V offers high precision with DC voltage accuracy of ±0.05% and true-RMS AC measurements for reliable readings. This level of accuracy ensures dependable results even when working with complex or non-linear signals. It is well-suited for aviation environments where precise measurements are essential.
True-RMS measurement allows the Fluke 87V to accurately read both sinusoidal and non-sinusoidal waveforms. This is especially important when working with variable frequency drives (VFDs) and modern aircraft electrical systems. It ensures technicians get accurate readings regardless of waveform distortion.
The low-pass filter helps eliminate high-frequency noise from electrical signals, improving measurement accuracy. This feature is particularly useful when testing motor drives or inverter-based systems commonly found in aviation applications. It enables clearer, more stable readings in electrically noisy environments.
The Fluke 87V includes a peak capture feature that records transient events at up to 250 microseconds. This allows technicians to detect voltage spikes and intermittent issues that might otherwise go unnoticed. It is especially valuable for diagnosing irregular or short-duration electrical faults.
The Fluke 87V is rated for CAT III 1000V and CAT IV 600V environments, making it suitable for high-energy electrical systems. These safety ratings ensure protection against voltage spikes and transients. It is designed to withstand harsh conditions often encountered in aviation and industrial settings.
The Fluke 87V includes multiple safety features, including input alert warnings, overload protection, and high-voltage indicators. The Input Alert™ system helps prevent incorrect lead placement, reducing the risk of user error. These features enhance safety when working on energized circuits.
Yes, the Fluke 87V is built for rugged use and can operate in demanding environments, including high-energy and high-altitude locations. It is designed to withstand drops, vibration, and daily wear in industrial and aviation settings. Its durable construction ensures long-term reliability in the field.
The Fluke 87V features a large digital display with a bright, two-level backlight for easy readability in low-light conditions. It also includes an analog bar graph that updates quickly for tracking rapidly changing signals. These display features help technicians interpret measurements more efficiently.
The Fluke 87V operates on a 9V battery and offers approximately 400 hours of battery life under typical conditions without backlight use. This long battery life reduces downtime and supports extended field use. It also features an easy-access battery door for quick replacement.
The Fluke 87V typically includes test leads, alligator clips, a holster, a 9V battery, and a temperature probe. These accessories allow users to perform a wide range of measurements right out of the box. Additional accessories, such as magnetic hangers and probe kits, are available for expanded functionality.
This unit is factory-calibrated and includes a general statement confirming its calibration. However, a detailed calibration certificate is not provided with the purchase. If you require a specific calibration certificate, it can be obtained for an additional cost.
Yes. PJi's calibration records satisfy FAA Part 145 tool control requirements, ISO 9001 quality system documentation standards, and AS9100 calibration record requirements. This makes PJi's calibration service ideal for repair stations, MRO facilities, and quality-certified shops that require full documented traceability for their test equipment.
PJi can. Our ISO/IEC 17025 Accredited Calibration Lab provides NIST-traceable calibration for the Fluke 87V (87-5), and unlike calibration-only labs, we can also sell you the instrument — so you can get both in a single transaction. For repair stations, MROs, and quality-certified facilities, that means less paperwork, fewer vendors, and full traceability. Learn more about PJi's ISO 17025 Calibration Services →
