Too bad - good function but poor implementation

First of all: I put the KlimaLoggPro now for 1.5 years. The metrological part and the sensors I am very satisfied. Regular testing of Sensiors with cable probe in ice water does not drift in the time before.

Very dissatisfied but I am with the operation of the device and the hand book. The operation itself is illogical, bouncing the keys so you can easily times quickly delete all laboriously been entered into sensors! That goes with three keystrokes and can still happen even after a long Nutzungsazeit because you want (for older people only with a magnifying glass to read) operation manual hardly ever has in mind.
Example? Pressing HIST (because you want to see the latest data) and the key bounce and you then press SET (which really means in the history mode EXIT, but otherwise just SET) and you then press again HIST because you might see something else wants, then it has already happened! All sensors are cleared. In SET-Mode HIST namely means DELETE. This is operating error-prone, just mainly because the keys like bounce times! Also the renewed populating of the sensors is not particularly comfortable succeeded. Each sensor specially the batteries should be removed and re-inserted in order to be recognized by the receiver. Weak.

Poor is also downloadable on the homepage software for reading the data on the PC.

With a little attention to detail (in which not very low price you can actually expect the then) would be five star attached, so I can forgive only three.