The Tekneka M155 is a high-precision, safety-rated TRMS digital multimeter designed for electricians, technicians, and engineers. With True RMS technology, it delivers accurate measurements for both AC and DC voltage, current, resistance, capacitance, frequency, duty cycle, temperature, diodes, and continuity. The M155 digital multimeter complies with CAT III 1000V & CAT IV 600V safety standards (IEC 61010-1:2001) which ensures reliable performance in industrial, automotive, and electrical applications. Features ● True RMS Accuracy – Measures distorted waveforms for precise diagnostics ● Wide Measurement Range – Tests voltage, current, resistance, capacitance, temperature, diodes, and continuity ● Frequency & Duty Cycle Measurement – Essential for motor control, inverters, and PWM signals ● Data Hold & Relative Mode – Freeze readings and compare values for troubleshooting ● Dual Ranging Modes – Auto range for quick checks & Manual Range for controlled testing ● High Safety Compliance – CAT III 1000V/CAT IV 600V protection for hazardous environments Applications ● Industrial Maintenance – Troubleshoot motors, drives, and control circuits with True RMS accuracy ● Electrical Installations – Safely measure high-voltage AC/DC circuits in compliance with safety standards ● Automotive Diagnostics – Test batteries, alternators, sensors, and wiring continuity ● Electronics & PCB Repair – Check components, capacitors, diodes, and signal frequencies ● HVAC Systems – Measure temperature, voltage, and current in heating/cooling systems
