The Maplin one is a clone of the same model I have - it has been working fine for a year or so and for the money you can't really go wrong. My only criticism of it is the LCD display is hard to read - you have to bee looking at it almost straight on to read it. Coupled with Cumulus its a very cheap way of getting your weather station online. I looked at the Davis units, but just the USB interface was more expensive than the weather station I bought.