This is a pre-sale order, and the estimated shipping date is september 28th. Meross bluetooth smart hub ms450p is needed for installation multi-metric environmental monitoring: go beyond temperature and humidity with temperature, humidity, dew point, absolute humidity, and vpd readings. The 1.9-Inch display puts key data at a glance, with up to 0.2 C 0.36 F temperature accuracy and 2% rh humidity accuracy for a clearer view of environmental changes. Ip66 protection for indoor & outdoor monitoring: built with ip66 water and dust resistance and uv protection, the sensor operates reliably from -20 c to 60 c -4 f to 140 f . Monitor temperature and humidity in greenhouses, garages, storage areas, and more. Compact & portable, monitor anywhere: designed with a compact, portable body and an easy-to-read display, the sensor lets you check temperature, humidity, and other environmental data at a glance. Connect to your phone via bluetooth to track temperature changes, making it ideal for camping, travel, outdoor storage, and more. 3 Years of battery life & instant alerts: powered by a cr123a battery, the sensor delivers up to 3 years of battery life. Built-in buzzer and app notifications alert you when temperature or humidity reaches your set conditions, so you can stay informed wherever you are. Long-term data tracking & export: automatically record environmental data, view trends in the app, and export data for further analysis. Store up to 120 days of data locally and up to 2 y...