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 137 results

GAOTek Clamp Energy Meter

SKU: GAOTek-CM-212
GAOTek clamp energy meter has three phase voltage, current, power, power factor, frequency, etc. measurement.

GAOTek Phase Clamp Meter

SKU: GAOTek-CM-208
This Phase Clamp Meter has operating temperature of -13 °F to 131 °F, frequency range of 45 Hz to 65 Hz and a voltage range of 80 V AC to 300 V AC.

GAOTek AC Clamp Meter

SKU: GAOTek-ACM-201
GAOTek AC clamp meter is used to measure three-phase electrical parameters.

GAOTek AC Digital Clamp Meter RMS

SKU: GAOTek-CM-223
GAOTek AC digital clamp meter RMS has ergonomic over-moulded body gives convenient one-handed operation with a full safety jaw and large, easy-to-read display for your convenience on the job.

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.

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.

GAOTek AC Wireless Clamp Meter

SKU: GAOTek-ACCM-101
GAOTek ac wireless clamp meter uses the same sensor technology as the original rogowski coil.

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.

GAOTek Ampere Clamp Meter

SKU: GAOTek-CM-217
GAOTek ampere clamp meter is a pocket-sized 3 5 or 6-digit RMS auto-scanning digital meter that does not require a dial to select a function.

GAOTek Calibration Clamp Meter

SKU: GAOTek-HCM-210
This Calibration Clamp Meter has a current range, 100 A clamp meter input measurement accuracy (current), 0.1%, and active energy accuracy, 0.1%.

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.

GAOTek Clamp Electromagnetic Flow Meter

SKU: GAOTek-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.

GAOTek Clamp Flow Meter For Arduino

SKU: GAOTek-CM-141
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.

GAOTek Clamp LCD Meter

SKU: GAOTek-CM-214
GAOTek clamp LCD meter has DC or AC current measurement.

GAOTek Clamp Liquid Control Flow Meter

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

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.

GAOTek Clamp Meter Auto Range

SKU: GAOTek-CM-227
This Clamp Meter Auto Range has voltage of 600 mV to 600 V DC, temperature of -4 °F to 1832 °F, AC current of 600 A and resistance of 2 KΩ to 20 KΩ.

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

GAOTek Clamp Meter Flow Meter

SKU: GAOTek-WCM-102
This Clamp Meter Flow Meter has a flow range of 0.1 m/s to 8 m/s, power dissipation of 1.5 W, power supply of DC 8V to 36 V and repeatability of 0.2%.

GAOTek Clamp Meters Amperimetrica

SKU:  GAOTek-CM-219
This Clamp Meters Amperimetrica has 40 A current, 10 NF to 100 mF capacitance, frequency of 10 HZ to 10 MHz, and temperature of -4 °F to 1832 °F.

GAOTek Clamp On Ultrasonic Flow Meter

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

GAOTek Clamp On Ultrasonic Flow Meter

SKU: GAOTek-HCM-208
GAOTek clamp on ultrasonic flow meter is composed by a digital converter and two clamp-on ultrasonic transducers.

GAOTek Clamping Force Meter

SKU: GAOTek-CM-157
GAOTek clamping force meter is a digital force gauge with a compact size and high accuracy.

GAOTek Current Clamp Meter

SKU: GAOTek-HCM-204
This Current Clamp Meter has a transmit method of 433 MHz wireless transmit, transfer distance of OD 492.126 ft, and resolution of 10 mA;0.1 Hz.

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.