Martindale TEK404 Continuity Tester

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  • Audible and visual indication of continuity levels.
  • Safety protection if accidentally used on live circuits.
  • Loud tone for use in noisy environments.

rrp £44.00

now £41.55 (Ex. VAT) £49.86 (Inc. VAT)

rrp £44.00


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"A low cost, continuity tester with audible & visual indication"

  • Description

    Martindale TEK404 Continuity Tester

    • The Martindale TEK404 is a low cost, easy to use continuity tester.
    • It has audible and visual indication plus overvoltage protection and has the same loud buzzer as the TEK402, giving it a very clear signal of continuity.
    • With all the benefits of the TEK402 this unit adds visual indication by an LED.
    • The TEK404 also has safety protection in case the unit is accidentally used on live circuits.
  • 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
    • Bright orange LED indication
    • Buzzer and LED intensity reduce with increasing continuity resistance
    • Pulsed buzzer and LED indication if unit is connected to live circuit voltage of >30V AC or 30>V DC ±20V
    • Operating temperature range of -10 to 40°C at max 70% RH
    • 9V, MN1604/PP3 alkaline battery
    • Ingress, IP 40 per BS EN 60529 :1991
    • BS EN 61010 - CAT III 600V overvoltage
    • Dimensions: 150 x 64 x 31mm
    • Weight: Approx 290g
    • Belt clip on rear face
  • Supplied Accessories

    • T47 leads
    • CAT III 600V test leads
    • Insulated croc clips
    • MN1604 battery
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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 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 so you will not have to wait around all day. We also offer delivery options for goods required urgently on certain products, all which are sent by DPD/Interlink on a fully traceable and manageable service.

    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.

    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.