Key Features

• EVERY ROOM ON ONE SCREEN - When one end of the house runs warm and the other runs cold, this indoor thermometer and hygrometer set shows all three rooms side by side in one app, each named for where it sits. All three sensors are the same model held to the same tolerance, so an 11-degree gap between the bedroom and the basement tells you about the house rather than about the sensors.
• SEE IT, THEN FIX IT - Reading a room is only half the job. The H3 hub is also a smart plug: plug a space heater, fan or humidifier into it and switch that device on or off from the app while you are at work or away for the weekend.
• ALERTS THAT ACTUALLY REACH YOU - Set a high and low limit per room and the alert arrives three ways at once, by app notification, by email, and as an audible beep on the hub, so a silenced phone is not the only line. It also tells you when it cannot see, flagging a hub power loss, a sensor that has gone offline, or any battery below 10 percent, and the beep can be silenced from the app once you know what happened.
• CHECK IN FROM ANYWHERE, NO MONTHLY FEE - This wifi temperature and humidity sensor reports to the app around the clock, so you can look in on the house from the office or another time zone. The hub is in the box, so there is no gateway sold separately, and alerts, two years of trend history and CSV export all stay free.
• ACCURATE READINGS, LOW UPKEEP - Each room temperature monitor reads -4°F to 140°F within ±0.5°F and 0 to 100% humidity within ±2%, stays linked up to 131 ft from the hub in open space, and runs on a rechargeable battery with a low-battery alert instead of coin cells you have to keep buying.
• GROWS WITH YOUR HOME - Start at three rooms and add sensors to the same hub as you take on more, or add a second hub for a far wing. It also works with MOCREO probe and water leak sensors, so one app can cover everything you watch.
• WHAT'S IN THE BOX, AND WHERE TO USE IT - One H3 hub, three wireless sensors and the cable, set up in the MOCREO Smart app over 2.4GHz Wi-Fi. Made for indoor, non-condensing spaces such as bedrooms, heated basements, nurseries, home offices, cabins and wine cellars; not intended for use inside a refrigerator or freezer, outdoors, or in unheated spaces below freezing. If you bought from this listing before the hub upgrade, your set came with the earlier H1B hub and MOCREO sensors pair with either one.

Specifications