Martindale TEK404 Continuity Tester
Martindale TEK404 Continuity Tester
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Martindale TEK404 Audible & Visual Continuity Tester

Martindale TEK404 Audible & Visual Continuity Tester
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Martindale TEK404 Audible & Visual Continuity Tester
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Martindale Part No: MARTEK404

The TEK404 can be used for the same low voltage applications as the TEK402 with the added benefit that its also suitable for use in CAT II and CAT III environments. There is an additional safety feature which pulses to alert the user when connected to live circuits >30V AC.

The loud 85dB buzzer makes it ideal for use in noisy environments where many continuity buzzers, multimeters or 17th Edition multifunction testers cannot be heard.

There is a convenient belt clip and the TEK404 is supplied with CATIII 1000V rated TL47 test leads.

CAT 111 1000V 

Probe Voltage
  • 9V DC approx

Test Current

  • < 50A across short circuit

Continuity Range

  • 2.2kΩ +/- 10%

Audible Output Level

  • 85dB minimum at 30cm with 0Ω continuity resistance

LED Indication

  • Bright Orange LED, buzzer and LED intensity reduce with increasing continuity resistance

Alarm Function

  • Pulsed buzzer & LED indication if unit is connected to live circuit voltage >30V AC or >30V DC +/- 20V

General Specifications

  • Ingress: IP40
  • Power Supply: 9V, MN1604 / PP3 alkaline battery
  • Compliance: BS EN61010-2001, CAT III 600V overvoltage
  • Dimensions: 50 x 64 x 30mm
  • Weight: approx 260g
  • Belt Clip: On rear face
  • Supplied with test leads (TL47), insulated croc clips & MN1604 battery
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