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Product Details

With LCD and LED display this is an exclusive voltage and continuity tester, with phase rotation test and a built in proving test that conforms fully to BSEN 61243-3:2010 and HSE GS38 12B. Features additional built in two pole phase rotation test.
Will not trip any RCD when testing between live and earth. Digital LCD and LED voltage indication also shows presence of voltage without battery power.

Technical Specification
Brand TIS
Manufacture ID TIS851
Delivery details
Order value: Under £10 £10 & over
Express usually Next Business Day before 6pm £5 Free
Turbo usually Next Business Day before 12 noon £10 £5
Remote areas standard delivery (2-4 days) £5 Free
Order Value: Under £25 Over £25 but less than £75 £75 & Over
£10 £5 Free

Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

More about Delivery & Returns
Click & Collect details
If you are using our Click & Collect service please note the following:
  • Order online or over the phone and collect in branch from 5 minutes later.
  • Ensure you check stock is available for collection at your chosen branch.
  • Check branch opening hours to ensure you have sufficient time to collect.
  • For items not available for same day collection, place order before 9pm Mon-Fri (4pm Sun) and you can collect Next Business Day (Mon-Fri) after 3pm.
  • If we have your mobile number, we’ll send you a text when your order is ready to collect.
TIS 851 Voltage & Continuity Tester - Self Proving is rated 4.5 out of 5 by 8.
Rated 5 out of 5 by from Basic, but effective Ideal multi-purpose tester, compact with lots of good features. Like the built-in proving system, saves carrying another piece of equipment when travelling.
Date published: 2020-02-03
Rated 5 out of 5 by from good for continuity checking needed this to test an underfloor heating system prior to floor going in to check not broken and worked perfectly
Date published: 2019-12-07
Rated 5 out of 5 by from Very good I have had this tester for a couple of years now never given me problems works well very easy to use got a fluke also but just prefer the cheaper one for some reason
Date published: 2019-10-13
Rated 5 out of 5 by from It works! Can't complain about this tester! GS38 compliant, self proving and it works how it's meant to. Just the job!
Date published: 2019-10-06
Rated 1 out of 5 by from Broken. Don't buy Bought this, tested it when i got home, read 230v no problem. Used it at work a couple weeks later, reads 440v through a house with a 230 supply, then read the same again at another site, tested against 3 other testers. only glad it reads too high rather than a false negative. Regardless for the money it's not worth it, going with another brand for my next one.
Date published: 2019-08-31
Rated 5 out of 5 by from Good Tester Excellent tester and having the built in proving unit is a great addition, no requirement to carry an additional proving unit, which usually cost more than the tester itself. Well done Toolstation for getting a good spec tester at a very reasonable price. Would recommend to any 'sparky'.
Date published: 2019-07-18
Rated 5 out of 5 by from Superb, robust continuity tester. I brought this voltage indicator/ continuity tester 3 weeks ago and must say it does exactly what i need. Buzzer function for continuity works perfect for pre-energization at first fix. and the voltage tester function does exactly what its meant too. Have had a Megger and a Fluke in the past, and this is just as good as these top brands but at a much more respectable price. Theres a clip to hold both both probes with one hand which is also handy. Great buy.
Date published: 2017-12-02
Rated 5 out of 5 by from Perfect for my needs Had to replace my tester as the other one died. This is great for live testing and continuity and would buy again.
Date published: 2017-10-21
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