£132.50

Martindale PD690S 690V AC Proving Unit

PD690S

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£133 today · previous high £133 · all-time low £74

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Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 611 days • 611 data points (No recent data available)

Historical
Generating forecast...
£132.50 £67.83 £81.94 £96.05 £110.16 £124.27 £138.38 06 June 2024 05 November 2024 07 April 2025 06 September 2025 06 February 2026

Price Distribution

Price distribution over 611 days • 5 price ranges

Days at Price
Current Price
27 days 17 days 87 days 448 days 32 days · current 0 112 224 336 448 £74-85 £85-97 £97-109 £109-121 £121-133 Days at Price

Price Analysis

Most common range: £109-121 (448 days, 73.3%)

Price range: £74 - £133

Price levels: 5 price ranges over 611 days

Description

Safe electrical working requires the use of a voltage indicator that has been proven with a suitable proving device before and after use to ensure the instrument is working correctly in accordance with the Electricity at Work Regulations. The Martindale PD690S is a direct replacement for the industry standard PD690. Its voltage output is matched to the VI-15000, MTL15 Drummond test lamp and all other 690V voltage indicators and two pole testers including the VT12, VT25 and VT28. In addition to the benefits of the industry standard Martindale PD440 and PD690 proving units, the S models feature a tough over moulded low profile case and come with an MG3 magnetic hanger (excluding kits). They are fast and easy to use, instantly supplying the test voltage for both high and low impedance voltage indicators, test lamps and meters. On completion of the high voltage test, a low resistance appears across the terminals to verify the continuity function of two pole testers. It’s good practice to match the output voltage of the proving unit with the voltage range of the instrument to be proved. The new S and SX Series simplify matching devices as they are colour coded with Martindale voltage indicators.

Key Features

Safely and simply proves the operation of voltage indicators and test lamps up to 690V

Essential for implementing effective safe isolation procedures

Tough over moulded low profile design

Long battery life with low battery indicator

Includes Mag3 high strength magnetic hanger

Product Specifications

Barcode

No barcode data available

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