Kewtech KT31 Insulation and Continuity Tester

Be the first to review this product

Popular Insulation tester from Kewtech, ideal for electricians testing insulation to 17th 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.

  • 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 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.