1657Continuity Tester


Check shorts of broken circuit in lamp cords and fuses, motors, electrical appliances, switches, receptacles and all types of electrical devices and controls.


  • Use with power off.
  • Require 1 AAA 1.5V battery.
  • With CE and RoHS Approval.
  • Replaceable bulb in handle will glow when circuit is present.


  1. Attach or press the alligator clip of the tester to one end of the component.
  2. Press the probe of tester firmly against the other end of the component.
  3. If the bulb in the tester glows, the component is functioning properly.  If not, replace the component.