Martindale VT28PD-S Voltage Tester & Proving Unit Kit

Martindale

£159.50 / £191.40 incl VAT

⚡ GS38 Compliant

Measures 12-690V

⚡ LCD

⚡ Audible Continuity and Phase Rotation Test

⚡ Heavy denier carry case

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Description

Martindale VT28 Two-Pole Voltage Tester Description

Capable of measuring AC/DC voltages between 12V and 690V, the Martindale VT28 Two-Pole Voltage Tester is a compact, two-pole voltage detector with a 7-LED scale and an LCD display for indicating exact values. In addition to this, the Martindale VT28 Two-Pole Voltage Tester offers Phase Rotation, Single-Pole Voltage Detection, and Continuity (with LED and buzzer) functions.

The Martindale VT28 Two-Pole Voltage Tester is also equipped with an Auto Power Off function for conserving battery life. Other practical features include a built-in white LED torch close to the probe tips ensuring the Martindale VT28 Two-Pole Voltage Tester can be used in dark/low-light environments.

Finally, the Martindale VT28 Two-Pole Voltage Tester meets the latest safety standards. It features removable GS38-compliant probe caps and a 1.2m double-insulated cable with a contrasting inner and outer core designed to provide a clear indication of any damage.

The Martindale VT28 Two-Pole Voltage Tester is a safety-optimised, simple-to-use voltage indicator ideal for proving circuits are dead prior to commencing work.

Martindale VT28 Two-Pole Voltage Tester Key Features

  • Two-pole voltage indicator
  • Measure AC/DC voltages between 12V and 690V
  • 7-LED voltage scale
  • LCD display
  • Indicates voltage even if the battery is dead
  • Phase Rotation
  • Single-Pole Voltage Detection
  • Continuity with LED indication and buzzer
  • Auto Power Off function
  • Built-in white LED torch
  • Meets the latest safety standards
  • BS EN61243-3 compliant
  • Removable GS38 probe caps
  • 1.2m double-insulated cable with a contrasting inner and outer core
  • A safety-optimised, simple-to-use voltage indicator ideal for proving circuits are dead

Martindale PD690S Proving Unit Description

The Martindale PD690S Proving Unit can be used to prove the Martindale VT28 Two-Pole Voltage Tester is working correctly both before and after use, as required by safe isolation procedures. This compact proving unit can produce voltages up to 700V AC/DC making it suitable for checking low- and high-impedance voltage indicators, test lamps, and two-pole testers with ranges up to 700V.

Practical features include a tough over-moulded low-profile design, a long battery life, a low battery indicator, and an Auto Power Off function.

The Martindale PD690S Proving Unit is an ergonomic, easy-to-use proving device.

Martindale PD690S Proving Unit Key Features

  • Prove the Martindale VT28 is working correctly both before and after use
  • Maintain compliance with safe isolation procedures
  • Simulates voltages up to 700V AC/DC
  • Suitable for proving low- and high-impedance voltage indicators, test lamps, and two-pole ranges up to 700V
  • Compact
  • Tough, over-moulded, low-profile design
  • Long battery life
  • Low battery indicator
  • Auto Power Off function
  • Ergonomic, easy-to-use proving device

What’s Included?

  • 1x Martindale VT28 Two-Pole Voltage Tester
  • 1x Martindale PD690S Proving Unit
  • 2x Probe Tip Covers
  • 2x 1.5V AAA Batteries
  • 6x 1.5V AA Alkaline Batteries
  • Instruction Manual
  • 1x Martindale TC72 Carry Case with Neck Strap
  • 1x Martindale VT28 Two-Pole Voltage Tester
  • 1x Martindale PD690S Proving Unit
  • 2x Probe Tip Covers
  • 2x 1.5V AAA Batteries
  • 6x 1.5V AA Alkaline Batteries
  • Instruction Manual
  • 1x Martindale TC72 Carry Case with Neck Strap

🚚 Testersmans Shipping Policy

Free Mainland GB Delivery Over £150

We offer free delivery on most mainland Great Britain orders over £150 (ex VAT).
This applies across England, Wales, and most of Scotland, excluding certain remote or offshore postcodes.

If your order total falls just short of £150, or you’re a returning customer, feel free to contact us — we may be able to offer a discount code or delivery workaround.
📞 01945 738112 | ✉️ sales@testermans.co.uk


📦 UK Delivery Options

We work with both Royal Mail and DHL to offer reliable and flexible delivery across the UK:

  • Royal Mail – Best suited for lighter parcels and for customers in remote regions, including the Highlands, Islands, and Northern Ireland.
  • DHL – Ideal for most mainland UK orders, providing fast, tracked delivery and excellent reliability for time-sensitive shipments.

Our checkout system automatically displays the available delivery services for your postcode and order weight, ensuring you always see the most suitable options.

Note: Heavy, bulky, or freight-only orders will be charged separately.
Our website is designed for quick, transactional purchases rather than bulk or palletised orders.
Please contact us in advance for a tailored freight quotation if your order falls into this category.


⏱ Dispatch & Delivery Timing

We aim to dispatch all in-stock orders promptly, but delivery depends on both when you order and which service you select.

  • UK orders: placed by 2:00 PM Monday–Friday are usually dispatched the same day.
  • International orders: placed by 2:00 PM Monday–Thursday are usually dispatched the same day.

Orders placed after these times are processed the next working day. This means delivery may occur the following day or later, depending on the courier and service selected.

Once dispatched, your chosen delivery service determines how quickly your parcel arrives:

  • Standard services We use Royal Mail Tracked 24 or DHL Parcel as our ‘Standard’ services. They are not guaranteed to arrive next working day.
  • Premium services (e.g. Royal Mail Special Delivery or DHL by Noon) offer guaranteed delivery windows.

If your order is time-sensitive, we strongly recommend choosing a guaranteed service or contacting us before ordering to confirm availability.

Please note: For logistical reasons, we may occasionally adjust the delivery method selected at checkout. For example, smaller items may be better suited to letterbox-friendly packaging or may be at greater risk of delay or loss via certain services. We actively monitor courier and postal service disruptions—including strikes and delays—and may modify shipping arrangements to help ensure timely and secure delivery.


📅 Busy Periods & Delays

We always aim to dispatch promptly, but delivery times may be affected by:

  • Seasonal demand (e.g. Christmas, bank holidays, or industry shutdowns)
  • Courier network delays outside our control
  • Supplier lead times or calibration requirements for certain equipment

If your delivery is time-critical, please contact us before ordering so we can confirm stock and courier availability.


🌍 International Shipping

We ship worldwide using UPS Express Saver® and other trusted global courier partners. All international shipments are tracked and generally dispatched Monday to Thursday to ensure smooth customs clearance and transit.

Estimated delivery times:

  • Europe: 1–2 working days
  • North America: 2–3 working days
  • Asia-Pacific & Rest of World: 3–5 working days

Delivery times vary depending on location, customs clearance, and local courier performance.


💰 Taxes, Customs & Import Duties

International customers are responsible for any applicable taxes, customs charges, or import duties.
These are not included in our product or shipping prices.

Your courier will typically provide a secure payment link for any import charges once your parcel reaches customs.
If import fees are refused and the parcel is returned, we will issue a refund minus all incurred shipping and return costs.


📍 Using Your Own Courier

If you would prefer to arrange collection via your own courier (UK or international), please contact us before placing your order to coordinate collection from our Wisbech warehouse.


📝 Important Notes

  • Please ensure your delivery address and contact number are correct at checkout.
  • Undelivered parcels may be returned to us after a short holding period.
  • Redelivery or return fees may apply, even if your order originally qualified for free delivery.
  • By placing an order, you confirm your understanding and acceptance of this policy.

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