True RMS Digital Multimeter with Component Logic Test
The Amprobe 37XR-A Digital Multimeter offers true-rms measurement along with component and logic testing for troubleshooting electronics at the bench or on the job site. Digital multimeter measures alternating current (AC) and direct current (DC) to 10 amp, Meets International Electrotechnical Commission (IEC) safety standard 61010 and is certified for category II installations and category III installations. Included Accessories: Carrying case, Magne-Grip holder with hanging strap, users manual, test leads

• Backlight, True-rms with component and logic test
• Inductance to 40 H, frequency to 40 MHz, capacitance to 400 μF, logic to 20 MHz
• Input warning tone when test leads are in wrong jack
• 10 Amps AC/DC, fully safety fused
• Continuity beeper
• Min/max, average, relative, peak, and data hold
• Auto power off to save battery life
• Separate door for easy battery and fuse access
• Autoranging; display: 4-3/4 digit LCD, 10,000 counts with 41-segment analog bar graph
• Display Update Rate: 2/sec, nominal
• Power Battery: 9 V NEDA 1604, JIS 006P, IEC 6F22
• Operating temperature: 0°C to 45°C at < 70% R.H

The Amprobe 37XR-A Digital Multimeter is a feature packed, rugged and reliable multimeter. It displays true-rms measurement on a low-light backlit LCD screen. Component and logic testing is used for troubleshooting electronics at the bench or on the job site. This multimeter features auto and manual ranging for measuring current, voltage, resistance, capacitance, frequency, inductance, duty cycles, logic states, and dBm function.

The meter comes with a set of detachable test leads with two alligator clips for measuring measure alternating current (AC) and direct current (DC) to 10 amp, AC voltage to 750 volts (V), DC voltage to 1,000V, resistance to 40 megaohms, capacitance to 400 microfarads, frequency to 10 megahertz (MHz), inductance to 40 henrys (H), duty cycles to 90%, and power to 50 decibels relative to miliwatts (dBm).

It meets International Electrotechnical Commission (IEC) safety standard 61010 and is certified for category II installations up to 1,000V (which covers large household appliances and devices connected to a fixed power supply, such as refrigerators and air conditioners), and 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). The meter comes with a magnetic strap that can be used to hang the meter on metal doors or fixtures.

The meter offers two ranging modes, auto or manual. When turned on, the meter is in auto-ranging mode and automatically selects the correct operating range for the measurement being taken. It can be switched to manual-ranging mode for applications where an instantaneous meter response is needed. True-rms sensing provides accurate reading when measuring both linear and non-linear loads.

The logic test reports the logic state of transistor-to-transistor (TTL) or complementary metal-oxide-semiconductor (CMOS) digital circuits in electronics. The maximum or minimum reading mode displays the highest or lowest reading in a session to track a sudden increase or decrease in readings, and the average function displays the average of the recorded maximum or minimum values.

The peak + or - function records peak positive or negative values for AC current and AC voltage. The relative zero mode stores a reading in memory to use as a zero point for subsequent readings, allowing for quick comparison of readings. 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 30 minutes of non-use to conserve battery life, and a low-battery indicator signals when the meter's batteries need to be replaced.