The Mastech MS2033A is a True RMS (TRMS) digital clamp meter designed for accurate AC/DC voltage, AC current, resistance, and frequency measurements. It is ideal for electricians, technicians, and engineers who need a safe and efficient way to measure electrical parameters without direct contact with live wires.

Key Features:

✅ True RMS (TRMS) Measurement – Ensures precise readings for both pure and distorted AC waveforms.
✅ AC Current Measurement (Clamp Function) – Measures current up to 600A without breaking the circuit.
✅ AC/DC Voltage Measurement – Measures voltages up to 600V with high accuracy.
✅ Resistance & Continuity Testing – Ideal for circuit diagnostics with a buzzer for quick continuity checks.
✅ Frequency Measurement – Useful for testing electrical signals and motor speeds.
✅ Diode Testing – Verifies the functionality of diodes in circuits.
✅ Auto-Ranging – Automatically selects the appropriate measurement range for convenience.
✅ Data Hold & Backlight Display – Freezes readings and provides visibility in dim environments.
✅ Overload Protection – Protects the meter from damage due to excessive voltage or current input.
✅ Auto Power-Off – Extends battery life by shutting down when idle.

Technical Specifications:

AC Current (Clamp): 0.1A – 600A
AC Voltage: 0.1V – 600V
DC Voltage: 0.1V – 600V
Resistance: 0.1Ω – 20MΩ
Frequency: 10Hz – 1MHz
Diode Test: Yes
Continuity Buzzer: Yes
Clamp Jaw Opening: 26mm (fits standard cables)
Power Supply: 2 × AAA batteries
Display Count: 4000 counts
Backlight & Data Hold: Yes
Auto Power-Off: Yes

Applications:

🔹 Electrical system maintenance and troubleshooting
🔹 Industrial and residential power measurements
🔹 Motor and generator testing
🔹 HVAC system diagnostics
🔹 Automotive and battery testing

The Mastech MS2033A TRMS Clamp Meter is a durable, accurate, and easy-to-use tool, making it perfect for professionals who require non-contact current measurement and versatile electrical testing capabilities in one compact device.