Electricity Tester-Circuit Tester 3X140mm (12pieces)

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An electricity tester, commonly known as a circuit tester, is a tool used to determine the presence or absence of electrical voltage in a circuit or electrical device. It typically consists of a probe or probes that are touched to various points in the electrical system to check for the presence of voltage. Circuit testers come in various forms, including simple devices with indicator lights or more advanced models with digital displays, and they are essential for safely diagnosing electrical issues, verifying the functionality of circuits, and ensuring proper electrical connections.



KSh 3,200.00 KSh 3,700.00


Electricity tester-circuit uses 

  1. Voltage Verification:
    • Verify the presence or absence of voltage in electrical circuits before performing maintenance or repairs.
    • Ensure that circuits are de-energized to prevent electrical shocks.
  2. Circuit Continuity Testing:
    • Check for continuity in wires and circuits to ensure that the path for electrical current is unbroken.
  3. Fault Diagnosis:
    • Identify and locate faults such as short circuits, open circuits, or faulty connections within electrical systems.
  4. Outlet and Socket Testing:
    • Determine if electrical outlets, sockets, or receptacles are functioning correctly and delivering the expected voltage.
  5. Appliance Testing:
    • Verify the electrical integrity of appliances and electronic devices by checking for proper voltage at different points.
  6. Grounding Checks:
    • Ensure that electrical systems are properly grounded by checking the continuity of the grounding path.
  7. Polarity Testing:
    • Determine the correct wiring polarity to prevent issues with appliances and equipment that may be sensitive to electrical polarity.
  8. Lighting Circuit Testing:
    • Test lighting circuits to identify issues such as blown bulbs, faulty switches, or wiring problems.
  9. Safety Inspections:
    • Conduct safety inspections in residential, commercial, or industrial settings to identify potential electrical hazards.
  10. Automotive Electrical Testing:
    • Verify the electrical integrity of automotive circuits, including checking fuses, wiring, and battery voltage.
  11. Troubleshooting Electrical Problems:
    • Assist in troubleshooting electrical problems by systematically checking different components of a circuit to pinpoint the issue.
  12. Quality Control in Manufacturing:
    • Ensure the quality of electrical components during manufacturing by testing for proper voltage and continuity.
  13. Routine Maintenance:
    • Conduct routine maintenance checks on electrical systems to identify and address potential issues before they lead to failures.
  14. Home Inspections:
    • Facilitate home inspections by electricians, ensuring that all electrical systems meet safety standards and comply with regulations.


SKU: AHS38198 Category:


3 X 140 MM

Safety measures and precautions

  1. Turn Off Power:
    • Before using the tester, always turn off the power to the circuit or device you are testing. Ensure that the circuit is de-energized before making any connections.
  2. Verify the Tester:
    • Before use, check the condition of the tester. Ensure that it is in good working order, and there are no visible signs of damage to the tool or its probes.
  3. Use Insulated Tools:
    • Use insulated electrical tools, including insulated screwdrivers or pliers, to avoid direct contact with live parts. This provides an additional layer of protection.
  4. Wear Personal Protective Equipment (PPE):
    • Wear appropriate personal protective equipment, such as insulated gloves and safety glasses, to protect yourself from potential electrical hazards.
  5. Work in Dry Conditions:
    • Avoid working in wet or damp conditions. Moisture increases the risk of electrical conductivity, which can lead to electric shocks.
  6. One Hand Rule:
    • When using a tester, follow the “one hand rule.” Keep one hand in your pocket or behind your back to minimize the risk of current passing through your chest in case of an electrical shock.
  7. Test the Tester:
    • Before and after using the tester, verify its functionality on a known live circuit to ensure that it is working correctly.
  8. Identify Voltage Range:
    • Ensure that the tester is set to the correct voltage range before use. Using the wrong setting may result in inaccurate readings or damage to the tester.
  9. Avoid Touching Metal Parts:
    • When using the tester, avoid touching the metal parts of the probes with your hands. Hold the insulated handles to prevent direct contact with live parts.
  10. Be Cautious in Confined Spaces:
    • Exercise extra caution when working in confined spaces, as it may increase the risk of accidental contact with live electrical components.
  11. Follow Lockout/Tag out Procedures:
    • If you are working on an electrical system that requires maintenance, follow proper lockout/tag out procedures to ensure the circuit is safely de-energized and cannot be accidentally re-energized.
  12. Keep a First Aid Kit Nearby:
    • Have a well-equipped first aid kit in the vicinity in case of emergencies. Know the location of emergency exits and equipment, such as fire extinguishers.
  13. Continuous Training:
    • Stay informed about the latest safety practices and receive proper training on the use of electrical testing equipment.
  14. Seek Professional Help if Needed:
    • If you are unsure about any aspect of electrical work or if the task is beyond your expertise, seek the assistance of a qualified electrician.



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