Clamp Meters
GAO’s electrical clamp meters are a type of electrical test instrument used to measure electrical current without the need to disconnect the circuit or make physical contact with the conductors. Our clamp meters work by using a magnetic clamp that can be opened and closed around the conductor, which induces a magnetic field in the clamp. This field is then converted into a measurable electrical signal, which is used to determine the current flowing through the conductor. They are particularly useful in situations where the current cannot be easily measured using other types of test instruments, such as when the circuit is live or the conductors are difficult to access.

GAO’s electrical clamp meters are composed of clamp, current transformer, measurement circuitry, display, function selection and range switches, power source, and input jacks.

The alternative names of a clamp meter include current clamp, amp clamp, ammeter clamp, current probe, tong tester, current sensor, AC/DC clamp meter, current meter, clamp-on ammeter, current tong, clamp-on current meter, clamp-on meter, jaw clamp meter, clamp-on amp meter, AC/DC current clamp meter, ampere clamp meter, non-contact ammeter, hall effect clamp meter and magnetic current meter.

Showing 1–24 of 79 results

GAOTek AC or DC Clamp Meter

SKU: GAOTek-CM-133
GAOTek AC or DC Clamp Meter measures very low and very high resistance with this True RMS AC or DC clamp meter.
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GAOTek AC or DC Clamp Meter

SKU: GAOTek-CM-139
This AC or DC Clamp Meter has 1000 μF capacitance range, 6000 Ω resistance range, 1000 V voltage range, 1.26 in jaw opening, and 600 A current range.
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GAOTek AC/DC Clamp Meter

SKU: GAOTek-CM-101
GAOTek AC/DC clamp meter is a high-quality AC/DC clamp meter manufactured in Japan.
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GAOTek Clamp Digital Flow Meter Water

SKU: GAOTek-CM-145
This clamp Digital Flow Meter Water has ±1% accuracy, 0.6 in to 236.22 in tube inner diameter, 10000 ppm turbidity, and 85% RH humidity.
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GAOTek Clamp Electromagnetic Flow Meter

SKU: GOATek-CM-161
This Clamp Electromagnetic Flow Meter has 4 mA to 20 mA output signal, ±0.5% precision class, load capacity of ≤500 Ω, and 0% to 90% humidity.
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GAOTek Clamp Flow Meter For Arduino

SKU: GAOTek-CM-141
$1,135.04
This Clamp Flow Meter for Arduino has 0 m/s to ±10 m/s measuring range, >±1% accuracy, 4 mA to 20 mA single output, and 15 hrs to 20 hrs power supply.
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GAOTek Clamp Liquid Control Flow Meter

GAOTek Clamp liquid control flow meter is a speed-type flow meter based on torque balance.
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GAOTek Clamp Magnetic Flow Meter

SKU: GAOTek-CM-142
This Clamp Magnetic Flow Meter has 10 W power consumption, 0.2% repeatability, -4 °F to 140 °F ambient temperature, and 4 mA to 20 mA analog output.
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GAOTek Clamp Meter Digital Multimeter

SKU: GAOTek-CM-102
GAOTek clamp meter digital multimeter is a 3 3/4 digits (4000 counts) auto range digital leakage current clamp meter
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GAOTek Clamp On Ultrasonic Flow Meter

SKU: GAOTek-CM-112
$609.60
Technical Specifications Product name  Ultrasonic flowmeter  Linearity  0.5 %  Repeatability  0.2 %  Accuracy  ±1 % of reading at rates>0.2 mps
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GAOTek Clamping Force Meter

SKU: GAOTek-CM-157
GAOTek clamping force meter is a digital force gauge with a compact size and high accuracy.
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GAOTek Current Leakage High Voltage Clamp Current Meter

SKU: GAOTek-CM-104
GAOTek current leakage high voltage clamp current meter is a high voltage clamp current meter designed for measuring current leakage in electrical systems.
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GAOTek DC Or AC Clamp Meter

SKU: GAOTek-CM-144
GAOTek DC or AC clamp meter can be used in most industrial and commercial applications where nonlinear loads distort current or voltage waveform.
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GAOTek DC Or AC Clamp Meter

SKU: GAOTek-CM-147
This DC or AC clamp meter has 0.91 in jaw opening, 10 MΩ input impedance, 10 mA current consumption, and 15 mA power consumption.
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GAOTek Digital 3 Phase Harmonic Power Clamp Meter

SKU: GAOTek-CM-108
GAOTek digital 3 phase harmonic power clamp meter is a sophisticated and versatile instrument designed for power quality analysis in three-phase electrical systems.
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GAOTek Digital AC DC Earth Multi-Meter Clamp Meter For Test Leakage Current And Ground Resistance

SKU: GAOTek-CME-108
GAOTek Digital AC DC Earth Multi-meter Clamp Meter for Test Leakage Current and Ground Resistance is designed to detect, record, and measure earth leakage currents with a resolution down to 0.01mA.
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GAOTek Digital Clamp Meter

SKU: GAOTek-CM-149
This Digital Clamp Meter has a current range of AC DC 40 A, 32 °F to 122 °F temperature range, and AC 40 Hz to 400 Hz frequency range
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GAOTek Digital Clamp Multimeter

SKU: GAOTek-CM-143
This Digital Clamp Multimeter has 0 A to 600 A measuring current range, 0 K to 60 K measuring resistance range, 1000 uF measuring capacitance range.
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GAOTek Digital Clamp Multimeter Current AC/DC Voltage Resistance Earthing Current Testers

SKU: GAOTek-CM-103
GAOTek digital clamp multimeter current AC/DC voltage resistance earthing current testers is a versatile digital clamp multimeter that offers a wide range of measurement capabilities.
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GAOTek Digital Clamp Phase Meter

SKU: GAOTek-FPM-104
GAOTek Digital Clamp Phase Meter is an electronic instrument used to measure the phase difference between two alternating current (AC) signals.
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GAOTek Digital Clamp-on Sensor Handheld Portable Ultrasonic Flow Meter

SKU: GAOTek-CM-109
$795.81
GAOTek digital clamp-on sensor handheld portable ultrasonic flow meter is a cutting-edge instrument used for non-invasive flow measurement in various fluid systems.
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GAOTek Digital Electromagnetic Flow Meter

SKU: GAOTek-CM-162
GAOTek digital electromagnetic flow meter of intelligent submersible flow meter is a high-performance, high-reliability flowmeter for measuring the volumetric flow of conductive liquids and slurries in closed conduits.
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GAOTek Digital Hook Clamp Meter TRMS Wireless

SKU: GAOTek-CME-102
$388.59
GAOTek Digital Hook Clamp Meter TRMS Wireless is a versatile and advanced measurement tool designed for electrical professionals.
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GAOTek Digital Wireless H/L Voltage Clamp Current Meter.

SKU: GAOTek-CME-107
$469.90
GAOTek Digital Wireless H/L Voltage Clamp Current Meter is a versatile measurement tool designed to accurately measure current in electrical systems.
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GAO Tek’s electrical clamp meters have the following functions:Current Measurement: The primary function of our clamp meter is to measure electrical current. It can measure both AC and DC current by clamping around a conductor and using the built-in current transformer to sense the magnetic field generated by the current.

Voltage Measurement: GAO Tek’s clamp meters also provide voltage measurement capabilities. They can measure AC and DC voltages by using test leads or probes connected to the meter's input jacks. This allows users to measure voltage in circuits and electrical systems.
Resistance Measurement: Some of our electrical clamp meters have the ability to measure resistance, which is useful for checking the continuity of wires and components or for troubleshooting electrical connections.
Data Logging: Our electrical clamp meters come equipped with data logging capabilities. They can store measurements over time, allowing users to analyze trends and diagnose intermittent issues.
True RMS Measurement: True RMS (Root Mean Square) measurement capability is a valuable feature in GAO’s electrical clamp meters. It accurately measures the effective value of complex waveforms, including non-sinusoidal signals, which is crucial for obtaining accurate readings in various electrical systems.
GAO Tek’s electrical clamp meters are rugged, versatile, and precision measurement instruments. They comply with applicable industry standards such as ISO 17025: ISO/IEC 17025, CSA C22.2 No. 61010-1, UL 61010-1, and ICE 61010-1.

Our electrical clamp meters help our customers comply with relevant U.S. government regulations such as:

Occupational Safety and Health Administration (OSHA) Regulations
National Electrical Code (NEC)
Federal Communications Commission (FCC) Regulations
National Institute of Standards and Technology (NIST)
Our electrical clamp meters help our clients in complying with relevant Canadian government regulations such as:

Canadian Electrical Code (CEC)
Measurement Canada
Canadian Standards Association (CSA)
Our electrical clamp meters have the following applications:

Electrical Maintenance and Troubleshooting: GAO’s electrical clamp meters are frequently used by electricians and maintenance technicians for diagnosing and troubleshooting electrical systems.
Energy Audits and Power Consumption Analysis: Our clamp meters are used in energy audits to measure current in electrical circuits, helping to assess power consumption and identify energy-saving opportunities.

Industrial Control Systems: GAO Tek’s clamp meters are used in industrial control systems to monitor electrical currents in motor control centers, switchgear, and distribution panels. They help ensure that machinery and equipment are operating within design parameters, detect imbalances, and diagnose abnormal current draw that may indicate a malfunction or inefficiency.
Automotive and Vehicle Electrical Systems: In automotive and vehicle maintenance, our clamp meters are used to measure current in various electrical systems such as batteries, alternators, and starter motors. They assist in diagnosing charging system issues, identifying parasitic battery drains, and assessing the health of electrical components.

Renewable Energy Systems: Our clamp meters find application in renewable energy systems, including solar photovoltaic (PV) and wind power installations. They are used to measure current in inverters, charge controllers, and battery systems, aiding in system performance evaluation and troubleshooting.

Research and Development: GAO’s clamp meters are utilized in research and development environments to measure current in prototype circuits, conduct experiments, and validate electrical designs.
Our electrical clamp meters can be shipped overnight within the continental U.S. and Canada, and can be shipped globally.