Mount and power
With the site set up in the app, fit the device: pick a good spot, fix it to the wall on two screws, and give it power. The drawings below are mechanical guidance. All dimensions are in millimetres.
Placement​
Good placement is what makes the readings trustworthy. The aim is air that represents the whole room, not a local hot spot by a window, a door or a heater.
Where in the room​
Mount on an interior wall: a wall with no outdoor-facing side. Keep clear of windows, exterior walls, doorways and heat sources.
Mounting height​
Fix the device so the screen centre is about 1.2 m above the floor. Anywhere up to 1.8 m is fine. Lower than 1.2 m invites knocks and tampering and reads less representative air.
Sun and heat​
Keep the device out of direct sunlight and away from heaters, heat pumps and their airflow. A sensor warmed by sun or a heater reports its own hot spot, not the room.
Clearance for airflow​
Air has to move freely over the vents and sensors. Do not enclose the device behind curtains or blinds, or box it in with shelves or furniture.
Mounting​
The device hangs on two screws set in a vertical line, 35 mm apart, which seat in the two keyhole slots in the central channel on the back. Leave each head a little proud, hang the device, then lock it with the anti-tamper screw underneath.
Power and cabling​
The device runs on the supplied Micro-USB charger, which plugs into a mains socket. Best is a dedicated socket above the device, out of reach, so it cannot be unplugged. Run the lead down to the device inside 20 mm conduit, with soft bends.
Keep it powered​
Devices get unplugged or switched off far more often than they fail. Secure the lead so it cannot be pulled, and cover the wall switch.
A reachable socket must be protected
If the device has to run from a socket that is low or within reach, you must fit a DO NOT UNPLUG notice and tape over the switch. This is a required step in the install, not a nice-to-have.
