Professional Auto Range Digital Multimeters With USB Data Output High-Precision True RMS Meters for Electrical, Industrial, and Lab Applications 86B, 86C, 86D, 86E

The VICTOR 86 Series represents a complete lineup of Auto range digital multimeters engineered to meet the diverse needs of electricians, HVAC technicians, lab engineers, and serious hobbyists. Each model in the series—86B, 86C, 86D, and 86E—shares the core convenience of auto-ranging technology while offering distinct accuracy levels, bit counts, and specialized features. Unlike manual range meters, these Auto range digital multimeters automatically select the correct measurement range, significantly reducing setup time and preventing common user errors. Whether you need a rugged field tool or a high-precision benchtop instrument, the 86 Series delivers.

Model 86B: The Versatile Workhorse (3999 Counts, True RMS)

The 86B is a true auto-ranging digital multimeter built for daily professional use. With a 3999-count display and True RMS (Root Mean Square) measurement, it accurately measures distorted sine waves commonly found in VFDs (Variable Frequency Drives) and switching power supplies. Key capabilities include DC voltage up to 1000V, AC voltage to 750V, DC/AC current to 10A, resistance to 40MΩ, capacitance to 40mF, frequency to 30MHz, and temperature from -20°C to 1000°C via the included K-type thermocouple. The 86B also features NCV (Non-Contact Voltage) detection, Live function, diode test, continuity buzzer, data hold, relative value, and max/min recording. The USB interface allows data logging to a PC. It’s the ideal entry point into Auto range digital multimeters without sacrificing essential pro features.

Model 86C: Enhanced True RMS with Backlit Display (3999 Counts)

Building on the 86B, the 86C adds a large backlit LCD for working in dimly lit panels or outdoor environments. This model retains the same 3999-count resolution and True RMS accuracy but improves usability with a dedicated backlight button. Like its sibling, the 86C is a full-featured Auto range digital multimeter, covering VFD troubleshooting, HVAC sensor checking (thermocouple included), and general electrical diagnostics. The NCV buzzer and Live function provide quick safety checks before touching terminals. For technicians who need a reliable, visible, and auto-ranging digital multimeter at a competitive price, the 86C is a top choice.

Model 86D: Higher Resolution for Critical Systems (5999 Counts)

Stepping up, the 86D offers 5999 counts (3 5/6 digits) and a 61-segment analog bar graph, providing better resolution for tracking slowly changing signals or fine adjustments. It maintains all core functions of the 86C (True RMS, NCV, temperature, capacitance, frequency) but adds a transistor (hFE) test socket—a rarity in modern Auto range digital multimeters. The higher count allows you to see small fluctuations in 5V or 24V control circuits that a 3999-count meter might miss. This model also includes an adapter for specific applications. For industrial maintenance and electronics repair, the 86D is a standout auto-ranging digital multimeter.

Model 86E: Precision Laboratory Standard (22000 Counts, 0.05% Accuracy)

The flagship 86E redefines accuracy in portable Auto range digital multimeters. With an exceptional 22000 counts (4 1/2 digits) and a fundamental DC voltage accuracy of ±0.05%+10, it rivals benchtop meters. The 86E features a 46-segment analog bar graph, 2x per second sampling rate (optimized for stable readings), and specialized low-voltage ranges (220mV DC, 220mV AC). While it does not include True RMS (making it best for clean sine waves), its extremely high resolution makes it perfect for R&D labs, sensor calibration, and precision automotive diagnostics. Capacitance resolution reaches 2.2nF. The 86E proves that Auto range digital multimeters can achieve laboratory-grade precision while remaining handheld and portable.

Common Premium Features Across the Series

• Auto Power Off (approx. 15 minutes) preserves battery life (four AAA batteries).
• CAT III 1000V / CAT IV 600V safety ratings for industrial and residential panels.
• USB Port on all models for continuous data logging to a PC.
• NCV (Non-Contact Voltage) detection for quick live wire identification.
• K-Type Thermocouple included (except 86E? confirm; but all list temperature function) for contact temperature measurement.

Unique Model Differentiators

• 86B & 86C: 4000-count class, best for general electrical work.
• 86D: 6000-count + hFE test for transistor troubleshooting.
• 86E: 22000-count for ultra-precision measurement (0.05% DCV accuracy).

Safety and Build Quality

All VICTOR 86 Series Auto range digital multimeters are built to IEC 61010-1 standards, with double insulation, fused inputs (10A and 200-400mA circuits), and overload protection. The large rotary switch is rated for thousands of cycles, and the holster-like casing provides drop protection. Whether you choose the entry-level 86B or the precision 86E, you receive a professional auto ranging digital multimeter ready for daily challenges.