Martindale TEK402 Continuity Tester

  • Loud buzzer for noisy environments
  • Low cost continuity tester
  • Not suitable for CAT II, III or IV environments

EAN: 5036162183195 SKU: MARTEK402 Category:


The TEK402 is a compact continuity tester with audible indication. The tough construction makes it ideal for industrial and commercial environments including low voltage signalling, process control and training or educational applications.

The loud 85dB buzzer makes it ideal for use in noisy environments where many continuity buzzers, multimeters or 18th Edition multifunction testers cannot be heard.

Supplied with Martindale TL49 Test Leads.


Probe voltage 9V DC
Test current 5mA
Continuity range (audible) Up to 10kΩ nominal
Audible output level 85dB minimum at 30cm with zero continuity resistance
Supply 9V, MN1604/PP3 alkaline battery
Complies with BS EN 61010-1 CAT I 50V peak
Fuse rating 50mA, 250V, fast acting ceramic fuse, 20mm x 5mm
Overvoltage 50V AC/DC
Weight 265g approx. (incl leads & battery)
Dimensions 150 x 64 x 31mm
Includes TL49 test leads, battery and manual
Do not use in CAT II, III or IV environments