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 Turbine Water Digital Flow Meter

SKU: GAOTek-CM-164
GAOTek turbine water digital flow meter is widely used in petroleum, chemical industry, metallurgy, water supply, paper making and other industries.
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GAOTek Universal Small Pipe Clamp-On Ultrasonic Flowmeter

SKU: GAOTek-CM-163
GAOTek universal small pipe clamp-on ultrasonic flowmeter the first choice for small pipe diameters of DN 15 to DN 40: simple installation and convenient operation.
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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 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 Double Clamp Ground Resistance Meter

SKU: GAOTek-CM-160
This Double Clamp Ground Resistance Meter has 128 Hz or 111 Hz Frequency, 20 MΩ insulation resistance and Soil Resistivity of 0.00 Ωm to 9000 kΩm
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GAOTek Wall Fixed Low-Cost Clamp Meter

SKU: GAOTek-CM-159
AOTek wall fixed low-cost clamp meter is suitable for measuring the flow rate of various sizes.
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GAOTek Portable Clamp on Flowmeter

SKU: GAOTek-CM-158
GAOTek portable clamp on flowmeter uses the time difference principle of ultrasonic wave propagation in the medium to measure the flow rate.
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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 Ultrasonic Clamp Meter

SKU: GAOTek-CM-156
This Ultrasonic Clamp Meter has -13 °F to 248 °F temperature, <1% solid and gas content, 50 V power supply, and -13 °F to 140 °F ambient temperature.
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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 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 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 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 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 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 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 Flow Meter Clamp

SKU: GAOTek-CM-148
This Flow Meter Clamp has 85 V to 264 V AC power supply, fluid temperature of ≤320 °F, 2 in to 27.6 in pipe diameter, and 1% accuracy.
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GAOTek Tri Clamp Meter

SKU: GAOTek-CM-140
This Tri Clamp Meter has 87.02 PSI to 232.06 PSI nominal pressure, ±0.5% accuracy, DC 24 V power supply, and 0.4 in to 7.9 in nominal diameter.
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GAOTek TES True RMS Dc Or Ac Clamp Meter

SKU: GAOTek-CM-155
This TES true RMS DC or AC clamp meter has measuring voltage range of 0 V to 400 V, 15 mA power consumption, and AC or DC 0 A to 30 A current range. 
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GAOTek True RMS Ac Or Dc Clamp Meter

SKU: GAOTek-CM-154
GAOTek true RMS AC or DC clamp meter is designed to meet international safety standard IEC 61010-1 CAT IV 600 V
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GAOTek Maintenance Clamp Meter

SKU: GAOTek-CM-153
This maintenance clamp meter has a measuring current range of 0 A to 1000 A, maximum AC DC current of 1000 A, and measuring voltage range of 1000 V.
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GAOTek Earth Resistivity Clamp Meter

SKU: GAOTek-CM-152
$595.07
This earth resistivity clamp meter has testing voltage of 0 V to 600 V, resistance range of 0.00 Ω to 1800 Ω, and current range of 0.000 mA to 50 A.
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GAOTek Milliamperes Process Clamp Meter

SKU: GAOTek-CM-151
GAOTek milliamperes process clamp meter can measure mA signals without breaking the loop.
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GAOTek Intrinsically Mini Digital Clamp Meter

SKU: GAOTek-CM-150
This intrinsically mini digital clamp meter has power supply of 1.5 V, 3 AAA battery, DC voltage of 200 MV to 1000 V, and AC current of 2 A to 4 A. 
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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.