Martindale TEK402 Continuity Tester

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  • Audible indication of continuity levels.
  • Loud tone for use in noisy environments.
  • Ideal for low voltage signalling and process control.

rrp £37.00

now £26.95 (Ex. VAT) £32.34 (Inc. VAT)

rrp £37.00


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"A low cost, versatile continuity tester with audible indication"

  • Description

    Martindale TEK402 Continuity Tester

    The Martindale TEK402 is a low cost, easy to use continuity tester with loud audible indication. The loud buzzer makes it easy to use in noisy environments and its tough construction means you will have many years performing continuity testing. The TEK402 is suitable for a wide variety of low voltage signalling, process control and educational applications.

  • Specification

    • Probe voltage of 2.2V DC
    • Test current of <50 micorAmp (across short circuit)
    • Audible continuity range from 0 to 2.2k ± 10%
    • Audible output level of 85dB minimum at 30cm with 0 ohm continuity resistance
    • 9V, MN1604/PP3 alkaline battery
    • BS EN 61010 - 2001 CAT I 50V peak compliance
    • Dimensions: 50 x 64 x 30mm
    • Weight: Approx 260g
    • Belt clip on rear face
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  • Delivery Information

    At we understand the importance of a reliable delivery service when shopping online. Especially when the goods are often essential to your working day. If your goods are required by a certain date please feel free to contact us for an honest and realistic indication whether this can be met. We aim to process all orders we receive within 1 to 3 working days, however from time to time we do have an increased demand for certain products or there might be delays from the manufacturer. In such cases delivery of your equipment may be subject to a minor delay.

    We use DPD/Interlink for all larger items and Royal Mail for smaller items and accessories. With DPD/Interlink you will receive a 1 hour delivery window on the day of delivery via e-mail/text and a notification 15 minutes before arrival so you will not have to wait around all day. You can even manage your booking online and re-arrange delivery for another date or arrange the goods to be left with a neighbour of your choice.

    We also offer delivery options for goods required urgently on certain products, all which are sent by DPD/Interlink.

    Our charges for UK deliveries:

    • FREE Delivery (on select products only): typically 3-5 working days*
    • Standard Delivery at £4.95: 2-3 working days
    • Next Working Day Delivery (on select products only) at £7.50
    • Pre-Noon Next Working Day Delivery (on select products only) at £9.50*
    • Pre-10.30am Next Working Day Delivery (on select products only) at £18.50*
    • Saturday Pre-Noon Delivery (on select products only) at £14.50*
    • Sunday Pre-Noon Delivery (on select products only) at £14.50*

    *UK mainland only

    NOTE! For next working day or Saturday/Sunday delivery options the order MUST be placed no later than 3pm on the working day before delivery is required. After 3pm, please arrange with our staff before selecting a priority delivery service. Priority services are available to UK mainland residents only (this might exclude certain areas in the north of Scotland).

    Customers outside the UK: exports to many countries all over the world. Prices for shipping vary on location and weight/dimensions. Costs are calculated for certain countries at the checkout. If your country is not included in this list please e-mail with your name, address and the items you would like to order for an accurate shipping quote or go to for more information.

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