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After 10years service the temperature sensor (cylinder ) on my original device failed a couple of weeks ago. I could have just replaced the cylinder but decided to replace the whole thing. Can be fiddly to fit. (It is used on a roof vent) but is adjustable to ensure correct opening and closure. The automatic feature is very convenient and avoids have to remember to open and close ventilation manually
Verified purchase: Yes | Condition: New
It is easily fitted if the instructions are carefully followed. It would be better to have slightly wider clamps for attachment to the window framework. Otherwise it responds well to temperature increases.
Verified purchase: Yes | Condition: New
Good product, just had to modify it slightly to open and close the window. Very easy to fit.
Verified purchase: Yes | Condition: New
Not as easy to fit took me about an hour holes dont match in my greenhouse
Verified purchase: Yes | Condition: New
A lot cheaper than other openers on the market but that doesn't mean cheaply made It's good quality, working well and very easy to fit Would definitely recommend it
Verified purchase: Yes | Condition: New