Continuity Testers

A Continuity Tester is a type of electrical testing equipment. Continuity testers are used to test for an electrical path between two given points. If an electrical current is found, the circuit that is being tested on can be safely de-energised before being connected to any other equipment.

A Continuity Tester can sometimes be referred to as an "Electrical Tester", "Voltage Continuity Tester" or a "Circuit Tester".

How do Continuity Testers work?

The test equipment holds an electrical current indicator, which sits between the two test leads and probes. Whilst performing a test, if a circuit is established and a current or voltage is found then the indicator will be activated. This indicator may be in the form a light or buzzer, alternatively there are audible Continuity Checkers that will omit a beeping noise if power or a current is found during.

What are Continuity Testers for?

A Continuity checker is used to perform a continuity test on apparatus, to determine if a connection has been made correctly or if one is apparent between two points. This tester also helps with the indication and detection of two points that are connected, that possibly shouldn't be.

RS Components supply a generous variety of Continuity Testers, brought to you from leading brands such as Catu, Martindale and of course our trusted own brand RS Pro.

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Description Price Test Current Visual Indicator Display Type Probe Voltage Battery Life Battery Type Weight Dimensions Height Length Maximum Operating Temperature Minimum Operating Temperature Model Number p Width
RS Stock No. 254-263
Mfr. Part No.TEK 404
5mA - LED 9V - 9V 185g 150 x 64 x 30mm 30mm 150mm +40°C -5°C TEK 404 64mm
RS Stock No. 255-604
Mfr. Part No.RSTEK402
50µA No LED 2.2V dc - 9V 260g 50 x 64 x 30mm 30mm 50mm - - TEK 402 64mm
RS Stock No. 193-8690
- Yes LED 240V - 9V 120g 64 x 42 x 192mm 192mm 64mm +40°C 0°C - 42mm
RS Stock No. 196-8016
Mfr. Part No.P01299926
20mA, 200 mA Yes Backlit LCD - 30000 measurements 4 x AA 1.2kg 225 x 185 x 135mm 135mm 225mm +50°C -10°C CA 6011 185mm