The BlueMaestro device looks as if it would do what you want, assuming that it will stand up to use in an outdoors environment. At a quick glance, however, it wasn't clear to me that the Ruuvi devices had logging capability - all their examples seemed to assume that you wanted real time on-line measurements. Depending on your skills and knowledge, something Raspberry Pi based could also work for you within a similar budget, though powering it would be a bit more of an issue.
A significant further issue with any of these approaches, however, would seem to be how and where you would mount the sensor beacons - both in terms of physical security (not getting damaged by passing animals or stolen), and in terms of getting sensible results for temperature and humidity. Ideally, they would need to be mounted in ventilated enclosures off the ground and a bit away from big expanses of stone or rock.
