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 £38.00

now £33.00 (Ex. VAT) £39.60 (Inc. VAT)

rrp £38.00


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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 2-5 working days*
    • Standard Delivery at £4.95: 2-3 working days
    • Next Working Day Delivery (on select products only) at £8.95
    • Pre 10.30am Next Working Day Delivery (on select products only) at £19.95*
    • Saturday Pre 12pm Delivery (on select products only) at £19.95*
    • Sunday Pre 12pm Delivery (on select products only) at £19.95*

    *UK mainland only

    NOTE! For next working day or Saturday 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.