Electrical Testers
GAO’s electrical testers are devices used to measure, test, and troubleshoot electrical parameters and conditions in electrical systems and circuits. They are used by electricians, technicians, and professionals working with electrical equipment. Our electrical testers come in various forms, each designed for specific testing purposes.  

GAO’s electrical testers are composed of display probe or test leads, measurement range selector, power source, control buttons, sensors, circuit protection, housing, calibration adjustments, data logging or connectivity. 

The other common names of the other electrical testers are voltage testers, continuity testers, multimeters, ammeters, ohmmeters, insulation testers, phase sequence testers, clamp meters, ground testers, power quality analyzers, frequency counters, earth resistance testers, impedance analyzers, network analyzers, surge testers, high-potential testers, leakage current testers, power factor meters, capacitance meters, inductance meters, function generators, logic analyzers, oscilloscope, EMI/RFI testers, battery testers, field intensity meter, cable testers, spectrum analyzers, dielectric strength tester, and infrared thermometers. 

GAO Tek has been focused on servicing the North American markets and has earned praise from many of its customers in the U.S., Canada, and Mexico.

Showing 1–24 of 298 results

GAOTek Portable High Performance Spectrum Analyzer

SKU: A0070007tek
This handheld, lightweight Spectrum Analyzer is designed to locate, analyse and map the signal interference and is very useful for wireless communication field engineers to characterize the signal environment.

GAOTek Handheld Digital Satellite Finder

SKU: A0N00021tek
This digital satellite finder is used for for DVB-S/S2, ABS-S signal measurement and comes with the embedded video and audio decoders

GAOTek High Performance Bluetooth/USB Wireless Data Logger

SKU: A0K20006tek
This high performance bluetooth/USB wireless data logger is specially designed for long time recording of voltage, current, resistance, continuity and capacitance and is able to create trend curves in real time

GAO Tek 7 Inch Industrial Panel PC with WinCE 5.0

SKU: A0490002tek
This rugged industrial panel PC is equipped with 400 MHz SAMSUNG S3C2416 processor as its computing engine.

GAOTek 4-Channel Automotive Tester/Diagnostic Oscilloscope

SKU: GAO-DSO-103
This lightweight portable 4-channel, 60 MHz automotive diagnostic oscilloscope has a wide input voltage range from 8 V to 36 V, making it suitable for vehicle power tests

GAOTek Portable Battery Conductance Tester

SKU: A0110009tek
This portable battery conductance tester is a multi-functional data storage measurement instrument for testing a battery’s operating condition and parameters quickly and precisely.

GAO Tek Adjustable Position Marker

SKU: 491014tek
This adjustable position marker is used to determine exact locations of specially equipped tags.

GAO Tek Position Marker

SKU: 491013tek
This position marker is specially used to determine exact locations of specially equipped tags.

GAO Tek 125 KHz RFID LF Bluetooth Reader

SKU: 221013tek
The wireless LF (125 KHz) Bluetooth based RFID device is compatible with most kinds of LF(125 KHz) cards.

GAO Tek Rugged Handheld Terminal RFID Reader

SKU: 246005tek
This flexible, handheld computer terminal is an ideal choice as an RFID Reader and has been proven successful in a number of applications.

GAO Tek 134 KHz RFID LF Bluetooth Reader

SKU: 222012tek
The wireless LF (134 KHz) Bluetooth based RFID device is compatible with most kinds of LF(134 KHz) cards.

GAO Tek 134.2 kHz Compact Handheld Reader

SKU: 222015tek
The wireless LF (134 KHz) Bluetooth based RFID device is compatible with most kinds of LF(134 KHz) cards.

GAO Tek 134.2 KHz Handheld RFID Reader Series for Animal Tracking

SKU: 222014tek
This series of low frequency RFID Readers for Animal Tracking provide a low cost easy-to-use system.

GAO Tek 134.2 kHz Portable Stick RFID Reader

SKU: 212009tek
This portable RFID stick reader is commonly used for mobile applications and is suitable for use in harsh environment such as feedlots, auction barns and abattoirs.

GAO Tek 134.2 kHz Rugged Handheld Stick Reader

SKU: 222016tek
This 134.2 kHz rugged handheld stick reader is specially designed for applications including logistics, animal tracking, warehouse management and access control.

GAO Tek Rugged Handheld Mobile Computer with HF RFID Reader

SKU: 243003tek
This RFID enabled, rugged, mobile computing device is packed with features and is a great choice for work in the field.

GAO Tek 13.56 MHz HF Handheld RFID Reader

SKU: 243014tek
This 13.56 MHz HF handheld RFID reader is an ideal solution for access control, postal service, warehouse management, logistics and personal identification.

GAO Tek 13.56 MHz RFID HF Bluetooth Reader/Writer

SKU: 223012tek
The wireless HF (13.56 MHz) Bluetooth based RFID Reader/Writer is compatible with most kinds of HF(13.56 MHz) cards.

GAO Tek 13.56 MHz. RFID Handheld Reader / Writer, 140 Rugged PDA

SKU: 243002tek
This 13.56 MHz PDA based RFID reader/writer, 140 Rugged PDA, is designed for industrial and outdoor environments.

GAO Tek 13.56 MHz. RFID HF Paddle Reader w/ Bluetooth

SKU: 223004tek
The RFID Blue Tooth Paddle Reader provides a smart combination of Interfaces for enterprise IT managers wanting to integrate RFID into their systems.

GAO Tek 13.56 MHz. RFID UTE Handheld Reader / Writer

SKU: 223003tek
The high performance reader module is integrated with Unitech RH767 rugged mobile computer.

GAO Tek 13.56MHz. HF Pistol Grip Portable Reader/Writer

SKU: 223005tek
The GAO HF Pistol Grip mobile computerized RFID Reader/Writer is designed specifically to read RFID tag data in the 13.56 MHz access range.

GAO Tek Active RFID End-Cap Reader for Asset Management

SKU: 530008tek
This active RFID end-cap reader for Psion Teklogix Workabout Pro G2 is a powerful, robust and cost-effective mobile tool.

GAO Tek UHF USB & Bluetooth Reader

SKU: 236021tek
This integrated UHF USB & Bluetooth reader is a cost effective solution.

GAO Tek’s electrical testers have the following functions:

  • Multimeter: Our multimeters are versatile electrical tester that combines several functions into a single device. It measures voltage, current, and resistance. Our multimeters can also test continuity, diode functionality, and capacitance. They are used in electrical and electronic troubleshooting, circuit testing, and general electrical measurements.
  • Voltage Tester: Our voltage tester are used to determine the presence or absence of voltage in a circuit. It helps to identify live wires and ensures electrical safety. GAO’s voltage testers are available in various forms, including non-contact voltage testers (which detect voltage without physical contact) and test lamps or pens (which light up or beep when voltage is detected).
  • Circuit Analyzer: Our circuit analyzers are used to test the integrity and safety of electrical circuits. It measures voltage levels, checks for proper grounding, verifies the presence of a neutral wire, and identifies wiring faults such as reversed hot and neutral wires. GAO circuit analyzers are used in residential and commercial electrical installations.
  • Ground Fault Circuit Interrupter (GFCI) Tester: GFCI testers are designed to test the functionality of ground fault circuit interrupters, which are electrical safety devices commonly found in areas where water is present (e.g., bathrooms, kitchens, and outdoor outlets). Our GFCI testers simulate ground faults and help ensure that GFCIs trip properly when a fault occurs.
  • Phase Sequence Tester: Our phase sequence testers are used in three-phase electrical systems to determine the correct order of the phase sequence. They ensure that the three phases are correctly connected and help prevent damage to motors and other three-phase equipment.
  • Insulation Resistance Tester (Megohmmeter): GAO’s Insulation resistance testers are used to measure the electrical resistance of insulating materials such as wires, cables, and electrical equipment. They help identify insulation problems and assess the overall insulation integrity. Our megohmmeters are used in maintenance and troubleshooting of electrical systems.
  • Power Quality Analyzer: Our power quality analyzers monitor and analyze various parameters of an electrical system, including voltage, current, frequency, harmonics, and power factor. They help identify power quality issues such as voltage fluctuations, harmonic distortion, and reactive power problems. GAO power quality analyzers are essential in industrial settings and for diagnosing electrical problems.

GAO Tek’s electrical testers are rugged, versatile and precision measurement instruments. They comply with applicable industry standards such as IEC 61010, IEC 61557, IEC 61000, UL 61010, ANSI/ISA-82.02.01, NIST Handbook 44, and ISO/IEC 17025

Our other electrical testers help our customers comply with relevant U.S. government regulations such as

  • National Electrical Code (NEC)
  • Occupational Safety and Health Administration (OSHA) Standards
  • National Institute of Standards and Technology (NIST) Regulations
  • Consumer Product Safety Commission (CPSC) Regulations

Our other electrical testers help our clients in complying with relevant Canadian government regulations such as:
Canadian Electrical Code (CEC)
Occupational Health and Safety (OHS) Regulations
Innovation, Science and Economic Development Canada (ISED) Regulations
Measurement Canada Regulations
Health Canada Regulations

Our other electrical testers have the following applications:

  • Circuit Analyzer: Gao Tek circuit analyzers are used to diagnose and analyze electrical circuits, including identifying faults, testing circuit integrity, and measuring voltage and current levels. It helps in troubleshooting electrical systems and ensuring proper circuit operation.
  • Insulation Tester/Megohmmeter: Our insulation testers are used to measure the insulation resistance of electrical components or systems. They help in assessing the insulation integrity of wires, cables, motors, transformers, and other electrical equipment. Gao insulation testers are used in preventive maintenance programs and during installation or troubleshooting to detect insulation breakdowns or faults.
  • Power Quality Analyzer: GAO’s power quality analyzers are used to measure and analyze various parameters related to the quality of electrical power. This includes voltage fluctuations, harmonics, power factor, voltage/current waveform distortions, and other power-related anomalies. Our power quality analyzers help in diagnosing power quality issues, assessing system performance, and identifying potential electrical problems.
  • Continuity Tester: GAO Tek continuity testers are used to check the continuity of electrical connections, wires, and components. They help in determining if a circuit is complete (closed) or broken (open). GAO continuity testers are used during installation, troubleshooting, or repair to ensure proper circuit connectivity and identify any interruptions or faults.
  • Phase Rotation Tester: Our phase rotation testers are used to determine the rotation direction of three-phase electrical systems. They help ensure that all phases are correctly connected and aligned, preventing potential equipment damage or operational issues due to incorrect phase rotation.
  • Ground Resistance Tester: Our ground resistance testers are used to measure the resistance of the grounding system. They help in evaluating the effectiveness of grounding and bonding in electrical installations, ensuring compliance with safety standards and minimizing the risk of electrical hazards.
  • Capacitance Meter: GAO Tek capacitance meters are used to measure the capacitance of capacitors. They help in testing and selecting capacitors for applications, verifying capacitance values, and assessing the condition or health of capacitors in electrical circuits or devices.

Our other electrical testers can be shipped overnight within the continental U.S. and Canada, and can be shipped globally.