Kewtech KT31 Insulation and Continuity Tester

Be the first to review this product

Popular Insulation tester from Kewtech, ideal for electricians testing insulation to 18th Edition and Part P regulations and standards. Tests at 250V, 500V or 1000V
In Stock
Returns Guarantee

rrp £310.00

now £189.00 (Ex. VAT) £226.80 (Inc. VAT)

rrp £310.00

Please select a free gift below.

"Analogue Insulation & Continuity Tester"

  • Description

    Kewtech KT31 Analogue Insulation & Continuity Tester

    • Can Test 250, 500 & 1000 V Insulation test ranges
    • Insulation measurement to 400MΩ
    • Zero adjust (Null) test lead resistance for use with Kewcheck R2 socket adaptor
    • Lock down test button for hands-free testing
    • Back light Display
    • Live circuit warning
    • Protected against accidental connection to live circuit
    • Battery check LED
    • Auto capacitive circuit discharge facility
    • Complies with BS7671 (PART P)
  • Specification

    Insulation Test Ranges

    • DC Test Voltage: 250V 500V 1000V
    • Measuring Ranges (Mid scale value): 0-200 MΩ (2MΩ), 0-400 MΩ (4MΩ)
    • Rated Current: 1mA dc min. at 0.25MΩ (250V), 1mA dc min. at 0.5MΩ, (500V) 1mA dc min. at 1MΩ (1000V)
    • Accuracy: ± 0.7% of scale length

    Continuity Testing

    • Measuring Ranges: 0-2Ω 0-20Ω
    • Accuracy: ± 3% of scale length
    • Open Circuit voltage output: 4V – 9V DC
    • Short Circuit current output: 200mA minimum


    • Withstand Voltage 5000V AC for one minute between electrical circuit and housing case
    • Dimensions: 175 x 115 x 86mm
    • Weight: 640g
    • Power Source: 6 x 1.5V AA
  • Product Questions

    Please Sign in or Create an account to post a question.

    There are no entries.

  • Reviews

    There are currently no reviews for this product. If you have previously purchased it please leave a review using our quick and easy form to the right.

    Write Your Own Review

    Only registered users can write reviews. Please, log in or register

  • 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.

    For more information on delivery, please see our terms and conditions.