£125.50

Martindale PD440S 440V AC Proving Unit

PD440S

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£126 today · previous high £126 · all-time low £107

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Price History & Forecast

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Last 68 days · 68 data points (no recent data)

Historical
Generating forecast…
£125.50 £104.80 £109.31 £113.83 £118.35 £122.87 £127.38 22 April 2026 08 May 2026 25 May 2026 11 June 2026 28 June 2026

Price Distribution

Price distribution over 68 days • 2 price levels

Days at Price
Current Price
15 days 53 days · current 0 13 27 40 53 £107 £126 Days at Price

Price Analysis

Most common price: £126 (53 days, 77.9%)

Price range: £107 - £126

Price levels: 2 different prices over 68 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 PD440S is a direct replacement for the industry standard PD440. Its voltage output is matched to the VI13800, the MTL10 and MTL20 Drummond test lamps and all other 440V voltage indicators and testers. In addition to all 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. 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 440V

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

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