The AC Infinity Cloudcom B2 is a backlit thermo-hygrometer with the sensor built into the body, reading temperature, humidity and VPD and logging all three to the AC Infinity app over Bluetooth. No cable to route and nothing to position — it reads the conditions wherever you put it, which makes it the tidy choice for a room rather than a tent.
One unit, nothing to set up
The sensor sits behind the front panel, so the B2 is a single object you place and forget. Stand it on a shelf, magnet it to a duct or hang it on the wall hardware and it starts logging. Where the corded B1 is about reading one specific spot from outside it, the B2 is about reading the space it is standing in — a room, a cupboard, a workshop, a reptile enclosure, a guitar room.
The trade-off is honest and worth stating: because the sensor is in the unit, the unit has to be in the conditions you want measured. Inside a tent that means opening the tent to read the screen, unless you are reading it through the app anyway.
Why VPD is the number to watch
Temperature and humidity on their own are ambiguous — 26 °C at 60% RH means something different in a cool room than a warm one, because what the plant experiences depends on the gap between leaf and air. VPD folds both into one figure and the B2 calculates and displays it, with a leaf-offset you can set. Working to a VPD range makes the fan and humidifier decisions far more obvious than chasing two numbers separately.
What the app adds
Pair over Bluetooth for historical charts, daily highs and lows, CSV export and alarm thresholds that push a notification when a limit is crossed. The screen tells you now; the app tells you what the last fortnight looked like, which is the part that shows whether your space is actually stable.
Specifications
| Product identification | |
| Manufacturer | AC Infinity Inc. |
| Product name | CLOUDCOM B2 |
| Model | AC-CCB2 |
| UPC | 819137022386 |
| Dimensions and display | |
| Total dimensions | 7.3 × 8.4 × 2.5 cm (2.87 × 3.30 × 0.98 in) |
| Display size | 5.74 × 5.64 cm (2.25 × 2.22 in) |
| Performance and technical | |
| Readings | Temperature, humidity, VPD |
| Sensor | Integrated (no corded probe) |
| Display | Backlit LCD |
| Connection | Bluetooth |
| Operating voltage | 2.0–3.3 V |
| Average current | 90 µA |
| Detection range (temperature) | −9 to 90 °C (16 to 194 °F) |
| Detection range (humidity) | 0–100% RH |
| Operating temperature | −10 to 50 °C (14 to 122 °F) |
| Operating humidity | 35–85% RH |
| Documentation | |
| Product manual | |
FAQ
B2 or B1?
Same unit, different sensor. The B2's sensor is inside the body, so it reads the space it is sitting in — simplest option, nothing to route. The B1 has a 3.66 m corded probe, which lets the display live outside the tent while the sensor sits at canopy height. For a grow tent the B1 is usually the better fit; for a room, cupboard, workshop or enclosure the B2 is the tidier one.
Can I use it inside a tent?
Yes — plenty of people do. Just know you will be reading it through the app most of the time, since the screen is inside the tent with it. If reading the number without opening the tent matters to you, the B1 is the one designed for that.
Does it control anything?
No. The Cloudcom range monitors, logs and alerts. Acting on the reading is a controller's job. A B2 is still a sensible companion to a controller, giving you a second reading point somewhere the controller's probe is not.
Where should I put it?
Out of direct airflow and out of direct light, at roughly the height you care about. A unit sitting in the path of a fan reads the air going past it; one sitting under a lamp reads warm.
Do I need the app?
Not to read it — temperature, humidity and VPD are on the screen. The app is where the history, charts, CSV export and alarm notifications live, and pairing takes a minute.