The Amprobe 15XP-B digital multimeter with built-in non-contact voltage detector is an average-sensing, auto- or manual-ranging meter for measuring current, voltage, and resistance, and for reporting logic states in electrical testing applications. The meter comes with a set of detachable test leads that measure alternating current (AC) and direct current (DC) to 2 amp, AC voltage to 750 volts (V), DC voltage to 1,000V, and resistance to 2,000 megaohms. The meter's non-contact voltage detector senses AC voltage without making contact with the circuit. The logic test reports the logic state of a transistor-to-transistor (TTL) digital circuit in electronics. 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 a reading on the display, even after the meter is disconnected. An auto power-off mode turns off the unit after 10 minutes of non-use to conserve battery life, and a low-battery indicator signals when the meter's batteries need to be replaced.

This average sensing, or average responding, meter provides accurate readings when measuring linear loads, such as standard induction motors and incandescent lights, where the current or voltage has a sinusoidal waveform. Two ranging modes (auto or manual) offer a range of operator control when taking readings. When turned on, the meter is in auto-ranging mode and automatically selects the correct operating range for the property being measured. It can be switched to manual-ranging mode, which allows the operator to choose the appropriate operating range. The meter has a 2,000-count resolution, meaning it can display up to 1,999 units (3-1/2 digits) before the operating range needs to be changed. It meets International Electrotechnical Commission (IEC) safety standard 61010 and is certified for category I installations up to 1,000V (which covers protected electrical equipment such