Devices used to detect and measure electrical and electromagnetic signals.

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Analog Ammeters (129 suppliers)

Analog ammeters are metered instruments that measure current flow in amperes. They display current levels on a dial, usually with a moving pointer or needle.
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Analog dBm Meters (23 suppliers)

Analog dBm meters are instruments that measure signal power. They display values on a dial, usually with a needle or moving pointer.
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Analog Multimeters (210 suppliers)

Analog multimeters are instruments that are used to measure electrical quantities such as voltage, current, resistance, frequency and signal power
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Analog resistance meters are instruments that measure electrical resistance. They display values on a dial, usually with a needle or moving pointer.
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Analog Voltmeters (147 suppliers)

Analog voltmeters are instruments that measure voltage or voltage drop in a circuit. They display values on a dial, usually with a needle or moving pointer.
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Current Sensors (258 suppliers)

Current sensors measure AC and/or DC current levels. They receive current inputs and provide outputs as analog voltage signals, analog current levels, switches, or audible signals.
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Digital Ammeters (246 suppliers)

Digital ammeters are instruments that measure current flow in amperes and display current levels on a digital display. These devices provide information about current draw and current continuity in order to help users troubleshoot erratic loads and trends
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Digital Multimeters (580 suppliers)

Digital multimeters (or multi-meters) are used to measure electrical quantities such as voltage, current, resistance, frequency, temperature, capacitance, and time period measurements.
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Digital resistance meters are instruments that measure electrical resistance. They use solid-state components and display values digitally.
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Digital Voltmeters (304 suppliers)

Digital voltmeters are instruments that measure voltage or voltage drop in a circuit. They use solid-state components and display values digitally.
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Electrical capacitance sensors detect and measure capacitance, the charge storage capacity of an electronic component.
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Electrical charge sensors measure electrical charge.
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Electrical field strength sensors are used to measure the strength of electrical fields.
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Electrical inductance sensors measure the inductance of an electrical component or system.
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Electrical power sensors are used to measure electric power.
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Electrical resistance and electrical conductance sensors measure the resistance or conductance of an electrical component or system.
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Electrical voltage sensors measure AC and/or DC voltage levels. They receive voltage inputs and provide outputs as analog voltage signals, analog current levels, switches, or audible signals.
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Electrometers (19 suppliers)

Electrometers are instruments that measure electric charge and/or electric potential difference.
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Electrostatic Meters (44 suppliers)

Electrostatic meters measure voltage, field and charge without transferring the charge to the instrument. As a result, it is unnecessary to modify parameters due to changing loads.
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EMF Meters (62 suppliers)

EMF meters detect and monitor harmful electric, magnetic or electromagnetic fields surrounding personal or work areas.
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Receivers are used to detect buried or hidden piping, equipment or ferromagnetic ores.
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Frequency Counters (156 suppliers)

Frequency counters are digital indicating meters for accurate measurement and display of square wave and pulse input signals.
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Frequency Meters (118 suppliers)

Frequency meters are instruments that provide analog outputs as frequencies that vary as a function of the applied input. They display values on a dial, usually with a needle or moving pointer.
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Frequency Sensors (26 suppliers)

Frequency sensors measure the frequency of an electric signal.
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Gaussmeters (27 suppliers)

Gaussmeters are instruments designed to measure extremely high level magnetic fields.
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Ground resistance testers are devices that are used to measure and test electrical grounding systems. Grounding enables optimum electrical continuity between conducting objects and earth.
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Harmonic distortion meters are instruments that measure harmonic distortion or phase position.
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KVA Meters (53 suppliers)

KVA meters measure the apparent power of AC devices in kilovolt-amperes (KVA). Apparent power is the combination of a circuit’s true power and reactive power.
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LCR Meters (139 suppliers)

LCR meters and impedance meters measures inductance (L), capacitance (C), and resistance or impedance (R).
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Magnetic field instruments include meters, gauges, recorders and other instrumentation for the measurement of magnetic fields and/or magnetic flux.
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Magnetic field sensors measure magnetic field strength, direction, and/or magnetic flux. They are used for scientific measurement, navigation, and industrial applications.
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Magnetometers (67 suppliers)

Magnetometers are scientific instruments that measure the strength and/or direction of a magnetic field. There are two basic types: scalar and vector.
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Megohmmeters (137 suppliers)

Megohmmeters generate high voltage, low current signals for testing the breakdown strength of electrical insulation. They are called megohmmeters because the insulating resistance of a properly designed product is expressed in mega ohms (M ).
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Milliohm Meters (75 suppliers)

Milliohm meters are capable of measuring very small resistances
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Noise Figure Meters (15 suppliers)

RF noise figure meters measure the noise contribution of an amplifier relative to a noise-free amplifier at a reference temperature. Usually expressed in dB for Ku-band amplifiers.
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Phase Meters (65 suppliers)

Phase meters (phase testers, phase rotation meters) check the phase sequence and phase orientation in three-phase electrical systems.
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Potentiostats and galvanostats are electrochemical instruments used in electrochemistry, battery and fuel cell testing, corrosion control, voltammetry, biomedical research, surface imaging, and related applications.
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Power Meters (398 suppliers)

Power meters are used for high-accuracy measurements of power over a wide-frequency bandwidth, and from both AC and DC circuits.
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S Meters (13 suppliers)

S meters (strength meters, signal-strength meters) measure the strength of signals in communication systems such as receivers and transmitters.
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SWR Meters (8 suppliers)

SWR meters are used to measure the standing wave ratio (SWR) in radio equipment. They are sometimes called VSWR meters.
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VU Meters (10 suppliers)

VU meters measure the volume (intensity) of analog audio signals. They display signal levels in volume units (VU), a measure of average volume level.
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