6000-Count Digital Multimeter with T-RMS and Auto-Ranging for AC/DC Voltage, AC Current, Resistance, Diode, Temperature, and Continuity Testing

When using a clamp meter to measure current, it is crucial to clamp around a single conductor rather than the entire power cable. This is because a two-prong outlet power cable typically contains a live wire (hot) and a neutral wire, while a three-prong outlet power cable contains a live wire, a neutral wire, and a ground wire. The current direction in the live and neutral wires is opposite, and the magnetic fields from these two conductors can cancel each other out. If you do not separate them when measuring, the clamp meter might show a reading of zero. Therefore, to ensure accuracy, it is essential to measure the current by clamping around each conductor individually.

When using the test leads supplied with this product, it is necessary to remove the dust plug from the leads before using them.

The TCM-300D is a smart digital clamp meter with both automatic and manual modes, designed for safe and accurate use by professionals and amateurs alike. This digital clamp meter features a 6000-count display, AC/DC voltage and current measurement capabilities, NCV (Non-Contact Voltage detection), Inrush measurement, Live, capacitance, resistance, diode, continuity, frequency, Max/Min value recording, Data Hold, temperature measurement, auto power-off, backlight, flashlight, full-range overload protection, and low battery indication. This versatile instrument can effortlessly address troubleshooting issues for professionals, automotive technicians, and home users alike.

To answer some common questions about this product:

Q: Where is the NCV function implemented on the clamp meter? A: The NCV probe of the clamp meter is located at the protruding part of the clamp tip. Simply bring the clamp meter tip close to the object being detected when using the NCV function.

Q: How long does the data hold function last? A: The data hold function will last until you press "H" again to exit the data hold mode.

Q: Which holes do the red and black test leads insert into? A: The red test lead connects to the INPUT jack, and the black test lead connects to the COM jack.

Q: What are the differences between TCM-300A and TCM-300D? A: Both products are identical in appearance, size, and accessories. However, the TCM-300D can measure DC current and has a zeroing function, which the TCM-300A lacks.

The TESMEN TCM-300A 6000 counts smart digital clamp meter features smart and manual dual measurement modes, ensuring enhanced safety, speed, accuracy, and flexibility. This multimeter features a unique clamp design, allowing for quick measurement of current without the need for contact or interrupting the circuit, catering to the different needs of both professionals and hobbyists.

This ampmeter is certified to CAT III 600V and RoHS standards, equipped with overload protection and featuring audible and visual alarms. It measures AC/DC voltage, NCV, Inrush, Live, resistance, capacitance, diode, continuity, frequency, and temperature. With functions such as data hold, auto power off, low battery indication, flashlight, and backlight display, it meets the needs of a wide range of users and scenarios.

The multimeter includes advanced inrush current measurement capability, aiding quick identification of startup issues, whether related to motors or starting circuits. Inrush current measurement ranges from 5-600 A and is applicable only in AC current mode; DC does not support inrush functionality.

This clamp meter utilizes non-contact voltage testing with audible and visual alarms, providing a completely safe, non-contact voltage testing solution without the need to touch any wires.

The package includes a digital clamp meter, two test leads, a pair of temperature probe pens, a carrying case, three AAA batteries, and a user manual.

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