Fluke 115 True-RMS Multimeter - Fluke-115

The Fluke 115 True-RMS Digital Multimeter is the compact, purpose-built instrument for field service technicians who need a professional-grade meter that fits in a belt pouch and works reliably through a full day of service calls. Its 600V True-RMS rating, 6,000-count display, one-handed operation design, and straightforward interface make it the most practical compact multimeter in the Fluke professional line. For commercial and residential electrical field service, HVAC technicians without VFD diagnostic needs, and facilities technicians covering a broad range of equipment, the 115 delivers accuracy and convenience in the most compact package Fluke offers at this performance tier.

Key Features

• True-RMS for Non-Linear Loads: Accurate AC voltage and current measurement on electronic ballasts, LED lighting drivers, switching power supplies, and VFD-driven equipment where averaging meters give incorrect readings. Critical for proper load assessment and protection sizing in commercial facilities with predominantly electronic loads.
• Compact One-Handed Design: Engineered for field service technicians who work alone, the 115 balances comfortably in one hand, allows thumb access to the rotary switch without repositioning, and has a slim enough profile to reach into tight panel spaces.
• 6,000-Count Backlit Display: Large white backlit digits are readable in poorly lit electrical rooms, panel interiors, and under-floor access spaces without a flashlight. Display update rate is 4 per second for stable numeric readout.
• AC/DC Voltage to 600V: Covers the full range of commercial and residential electrical systems, 120V, 208V, 240V, 277V, 480V, at the CAT III 600V safety level required for panel work.
• AC Current to 10A (20A Overload for 30 Seconds): Branch circuit and equipment current measurement with a short-duration overload rating that handles motor inrush without tripping the instrument's protection circuit.
• Resistance to 40MΩ: Conductor identification, open-circuit checks, and basic insulation spot-checks, the standard resistance tasks on most field service calls.
• Capacitance to 9,999µF: Motor capacitor verification for HVAC and fan motors without needing a separate capacitance meter.
• Min/Max/Average with Elapsed Time: Records measurement history with the elapsed time for each minimum and maximum capture, useful for documenting voltage sags and current spikes during load events.
• CAT III 600V Safety Rating: Appropriate for distribution panel, feeder circuit, and motor control center measurements at commercial voltages.

Technical Specifications Overview

The 115 measures AC/DC voltage to 600V (True-RMS), AC current to 10A (20A overload), resistance to 40MΩ, capacitance to 9,999µF, and frequency. It is positioned in the same tier as the 116 (which adds temperature and microamp capability for HVAC work) and above the 113 (utility) and 114 (electrical). The 115 is the right choice for field service technicians who need True-RMS accuracy at 600V without the HVAC-specific functions of the 116.

Field Service & Commercial Applications

• Commercial electrical field service, branch circuit voltage, panel current, and continuity testing across a broad range of commercial building electrical systems
• Facilities maintenance rounds, quick voltage checks, motor current readings, and continuity tests on building systems without carrying a large instrument kit
• HVAC general electrical verification, power supply voltage and current to compressors and fans where microamp and temperature are not needed
• Retail and light industrial equipment service, PLC power supply voltage, conveyor motor current, and lighting panel measurement

Fluke 115 Calibration

PJi operates an ISO/IEC 17025 Accredited Calibration Lab and provides NIST-traceable calibration for the Fluke 115 at the time of purchase, add calibration to your order at checkout. Our calibration documentation satisfies FAA Part 145 tool control requirements, ISO 9001 quality system records, and AS9100 calibration traceability requirements. For repair stations and quality-certified facilities that require documented traceability, PJi is the one-stop source: the instrument and the calibration certificate in a single transaction. Calibration-only companies cannot sell you the instrument. Major retailers cannot calibrate it. PJi does both.

Why Buy from Pilot John International

Pilot John International is an authorized Fluke distributor with specialized expertise serving aviation maintenance, FAA Part 145 repair stations, and industrial MRO facilities. Unlike Amazon, Grainger, or Test Equipment Depot, which sell Fluke instruments but offer zero calibration services, PJi's in-house ISO/IEC 17025 Accredited Calibration Lab calibrates your instrument at 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.