Tekneka M165 TRMS Digital Multimeter

Key Features:

True RMS measurement for AC/DC signals – Delivers accurate readings on both sinusoidal and non‑sinusoidal waveform voltages and currents, making it ideal for complex electrical systems.

High‑resolution 50,000‑count display – Offers ultra‑precise readings and finer resolution than standard multimeters, helping professionals pick up subtle changes in measurements.

High‑voltage capability (up to 1,000 V) – Allows safe measurement of both AC and DC voltages up to 1,000 V, making it suited for industrial installations and high‑energy circuits.

Wide capacitance measurement range (0.01 nF to 5,000 µF) – Enables testing of very small to large capacitors, making it a versatile tool for electronics repair, motor circuits, and component testing.

Advanced frequency measurement including logic/linear signals – Equipped to measure frequency across a broad range of signal types (not just standard sine waves), which is useful in control systems, electronics debugging and signal analysis.

Designed for professional applications – Built with professional use in mind: industrial maintenance, electrical installation, automotive diagnostics and PCB repair are highlighted use‑cases.

Robust build and safety compliance – While specific safety category (CAT) ratings aren’t always listed, the design supports high‐voltage usage which implies strengthened internal protection suitable for demanding environments.

Efficient workflow features – With high display resolution and broad measurement capability, reduces the need to switch instruments, helping technicians work faster and more reliably.

Key Technical Specifications:

Display: 50 000‑count LCD with 51‑segment bar‑graph.

Measurement Technology: True RMS for AC, DC and AC+DC signals.

DC Voltage Range: 0.10 mV to 1 000.0 V, accuracy ±(0.03% + 6 digits).

AC Voltage Range: 1.00 mV to 1 000.0 V, accuracy ±(0.5% + 40 digits).

DC Current Range: 1.0 µA to 10.00 A, accuracy ±(0.15% + 15 digits).

AC Current Range: 1.0 µA to 10.00 A, accuracy ±(0.75% + 20 digits).

Resistance Range: 0.00 Ω to 50.00 MΩ, accuracy ±(0.1% + 5 digits).

Capacitance Range: 0.300 nF to 40.00 mF, accuracy ±(5.0% + 10 digits).

Frequency Range: 5.000 Hz to 10.00 MHz, accuracy ±(0.006% + 4 digits).

Diode Test: Up to ~2.5 V, accuracy ±(1% + 5 digits).

Duty Ratio: Range 5% to 95%, accuracy ±(0.006% + 4 digits).

Safety / Protection: CAT III 1000 V safety rating, Pollution degree 2.

General Features: Auto/manual ranging, data hold, max/min, relative mode, back‑light, PC‑LINK RS‑232 interface for data logging.

Power Supply & Physical: 6×AAA 1.5 V batteries; Dimensions: ~200 × 100 × 40 mm; Weight net: ~560 g.