Was late to the party so started a new thread - if you're looking for something reliable and easy, I use SensorPush www.sensorpush.com – I use a few of the HTP.xw sensors around the house and outside where I have attached them under the eaves so out of direct sunlight and then paired them to the Gateway they sell - really easy to use through the app and see it all remotely.

Bought mine through Amazon.com and when I had an issue after quite a few years use with the gateway they simply shipped me a new one direct for free after contacting their support team.

Hope that helps