Amprobe ACD-14 PLUS Dual Display Digital Clamp Multimeter with Temperature with a NIST-Traceable Calibration Certificate with Data

The maximum reading mode displays the highest reading in a session to track a sudden increase in measurements. An audible continuity sensor confirms that the circuit conducts electricity, and a diode test detects whether the circuit’s diodes work properly. The hold function keeps the reading on the display, even after the meter is disconnected. A relative zero mode stores a reading in memory to use as a zero point for subsequent readings, allowing for quick comparison of multiple readings. The unit automatically turns off after 30 minutes of non-use to conserve battery life, and a low-battery indicator signals when the meter's batteries need to be replaced. A finger guard on the body of the meter helps protect fingers from shock.

It is an auto-ranging multimeter and automatically selects the correct operating range for the property being measured. The meter has a 4,000-count resolution, meaning that it can display up to 3,999 units (3-3/4 digits) before the operating range needs to be changed. It meets International Electrotechnical Commission (IEC) safety standard 61010 and is certified for Category III installations up to 600V, which covers items used with enclosed building circuit installations (such as service panel parts, branch circuits, and fixed installations that are connected directly to a building's AC power supply. This has been Amprobe’s top seller for many years and has been proven for its applications.

Clamp meters (also called clamp-on meters) measure electrical current without cutting through wires or touching or interrupting the electrical circuit. Available in handheld or benchtop models, clamp meters diagnose problems in electrical equipment, wiring, and power supplies. The meter's current clamp has two jaws that fit around a conductor to take measurements. All clamp meters test for current. Some come with test leads and inputs for measuring voltage, capacitance, and resistance. They display information either in analog or digital form. Factors that influence meter choice include the electrical properties to be measured, the anticipated range of results, and the desired level of protection against transient voltages determine meter choice. Safety ratings are based on the International Electrotechnical Commission's (IEC) standards for low-voltage test equipment. IEC 61010 delineates four overvoltage installation categories. In general, a meter with a category IV rating will provide more protection against transient voltages than a meter with a lower category rating.