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⚡ Prove it. Trust it. Work safe every time.
The Martindale PD240 is a compact, battery-powered 240V DC proving unit designed to verify the operation of voltage testers and multimeters before and after use. Featuring a durable build and integrated belt clip, it supports safe isolation procedures in compliance with industry standards, making it an indispensable tool for professionals and DIY enthusiasts focused on electrical safety.
| ASIN | B00B0W3BIU |
| Batteries Required? | Yes |
| Batteries included? | No |
| Best Sellers Rank | 46,422 in DIY & Tools ( See Top 100 in DIY & Tools ) 68 in Voltage Testers |
| Colour | Yellow |
| Customer Reviews | 4.4 4.4 out of 5 stars (118) |
| Date First Available | 14 Jan. 2013 |
| Included components | 1 x Martindale 240 V Proving Unit with battery |
| Item Package Quantity | 1 |
| Item Weight | 180 g |
| Item model number | PD240 |
| Manufacturer | Martindale Electric Co Ltd |
| Measurement Accuracy | +/-5% |
| Measurement System | Metric |
| Number of Pieces | 1 |
| Part number | PD240 |
| Power source type | Battery Powered |
| Product Dimensions | 14.4 x 6.3 x 3.1 cm; 180 g |
| Size | Compact |
| Specification met | CE, EN 61010-1, RoHS |
| Style | Single |
A**R
Review.
Very good product trusted manufacturer.
A**B
Essential kit
Any homeowner who does DIY work on their electrics should have one of these, as well as a 2 probe voltage tester. It is the best way to ensure that the circuit / socket etc you are working on is 100% definitely dead and could prevent death or serious injury. It's very easy to use - once the battery has been put in, just stick your probes into the holes and you should get a reading of 240 volts, thus ensuring that your probes are working correctly. You can then use your probes on the electrical socket you're working on, testing all combinations (i.e. neutral + earth, neutral + line, earth + line) to ensure that it's dead (if it's live, your probes should light up, as they did when you tested them in this tester initially), and then finally, you should test your probes again in this tester to make sure they are still working and have not failed after the initial test. It seems a bit over the top to do this test before and after, but it could save your life. The unit states that it only takes an alkaline battery, but I used a 9 volt lithium one from Energizer and it seems to work fine. I prefer lithium batteries and they don't leak / corrode (well, so they claim) so hopefully I won't dig it out of my toolbox in 6 months time to find the battery has leaked all over it! It's a shame it doesn't come with a protective case though. It's quite a pricey tool so some protection for it would have been nice (would prefer a case than a battery).
T**S
needed for safe isolation
as expected
N**E
Very Simple & Very Important
A Very Simple & Very Important piece of kit
L**H
Smelt of burning !
Didn’t work when it arrived smelt of burning so returned it , bought a different one and that worked fine and Amazon refunded in full thanks
N**S
Compact proving unit for your voltage indicator ( high impedance)
Small size with handy belt clip for use on person or with cable tie enabling it to be lashed to top of steps through those convenient holes provided on top platform on all fibreglass ones I've seen.
S**K
It just wortks
What more to say - it just works as expected.
B**H
No confidence when using this.
First one I received I returned thinking it was faulty. When I tried it on my Drummond MTL20 test lamp it only showed 50v. I assumed that the proving unit was faulty so I returned it and received a new one. This was exactly the same (50v reading). As my life depends on this I was not to confident that the proving unit was OK. Returned replacemet and got full refund.
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