Timeguard NTT04 7-Day Compact Electronic Timeswitch with Voltage Free Contacts

Well made. Does the job. Simple to fit and simple to use.

Needs 32mm deep mounting box. Programming is simple but the instruction leaflet should be read throughout before commencing installation.Claims to switch up to 16A resistive, but much too early to test reliability for this mode.

Have it installed for almost two months now and it works great. I followed the instructions it came with. Didn't have any problems and didn't need anything else either.

Had one of these for a heated towel rail in my downstairs WC. Bit fiddly to install but a deeper backbox would have helped with that I guess. No provision for a surface exit flex so had to improvise one. Main issue is it failing after a few months. I thought I had a dodgy one so ordered another - failed in the exact same way after about 5 months, during which it was hardly used anyway. Waste of money sadly. Absolutely not worth buying - look for an alternative.

very good for price

There is a common thread to this genre of product, Timeguard and others, reports of early failures. It's in and running, controlling a 300W and a 150W towel rail so not an arduous task electrically, early failure will disappoint. I have marked this down from new mainly on facets of the user-interface. (Update: still working after a year)There is a slightly cryptic comment, in bold to give Timeguard their due - "Note: The only way to re-enter a blank times (or dashes) is to reset the unit". That's a "duh" from me to the designer. I thought I would try setting the On and Off time the same to see what happens. Seems hopeful that might result in a blank time (as it would if it was a Sangamo). Err no, it switches On but not Off. Double "duh". Hope the designer comes here and explains that. It may not even be correct to say that is the "only" way (Timeguard's words, not mine). Elsewhere it says that changing the mode deletes the programming. That would be a better way because it doesn't reset the time and date like a reset. Got that to work once but not every time I tried.I think it is a pity that the OFF OVERRIDE mode "where output is OFF irrespective of the programming" (Timeguard's description) is reset by Boost meaning THERE IS NO MANUAL MODE with this timer. After a few days learning workarounds that is the single worst design feature. And here's another "problem" (as I see it) with the Boost function. If the Boost times-out in the middle of a timed ON period, the remainder of the timed ON period is cancelled. Not at all sure I consider the effect to be "Boost" because it effectively reduces the On period.The Advance function is useful and well enough documented if you can read and understand the small print and recall and still understand when required. There is a problem however that the timing then depends on the next On or Off time which is not obvious. This shouldn't be a memory test but there is no *easy* way to verify the times. I failed to understand and recall and ended up with the towel rail on all night instead of until 23:00. A better way round this might have been to allow more Boost hours, say four like the manual Timeguard TGBT5, or even nine like some heating controllers including Timeguard, instead of two.Advance update:After a bit of use I'd begun to live with the user interface shortcomings but I noticed an Advance "quirk" which I detest. If Advance is used (usefully) and a little while later Advance is clicked again in an attempt to ADVANCE again, it does not ADVANCE but goes to OVERRIDE which produces a radically different outcome. In my case towel rail on all night, not what was wanted. IMO, following an Advance, after a few seconds the system should revert so that the next press is Advance not Override. I've tried to see merit in the product, was slowly getting there, but this is the last straw. Another star lost.So a potentially useful unit in many ways let down by a really poor user-interface. Its in and running and arguably more useful in summer than the replaced manual Timeguard TGBT5 (still working after nearly 3 years BTW). However I can see that the lack of true Manual means its not going to work well with the central heating on either side of the main heating season.Just about managing with workarounds. An OK product that needs a better UI

One major floor for me is when the BOOST is pressed . It doesn’t revert back to the state is was originally in IE OFF OVERRIDE is changed to regular timer settings. So every time the family boosts I have to manually put back to OFF OVERRIDE.

Working as expected.