Een aantal maanden terug heb ik een OpenAIR Sense Pro besteld. Ik gebruikte al een OpenAIR mini met twee OpenAIR valves voor de aansturing van de mechanische ventilatie. Op verzoek van @
The_ Mad_Ping heb ik een review geschreven over mijn eigen ervaringen met de Sense Pro, in combinatie met de OpenAIR mini en de twee kleppen. Om het ook relevant te maken voor mensen die niet op dit forum komen, maar de Sense Pro zien op het Tindie platform, heb ik de review in het Engels geschreven. Het is een aardig verhaal geworden, maar de TL/DR is dat ik super tevreden ben en dat de huidige setup 10x beter is dan hoe ons huis werd opgeleverd (proprietary CO2 sensor, draadloos verbonden met ventilatie, drempelwaardes niet in te stellen, etc.).
My hands-on with the Open AIR Sense Pro
Short version: This thing is a little powerhouse of an air monitor. It’s ESP32-based, crammed with very accurate sensors, and wrapped in a clean 3D-printed shell. It looks good on a shelf, and it plays super nicely with Home Assistant.
Unboxing and build
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The 3D-printed housing feels sturdy and purposeful, not some flimsy prototype. The fit is tight, screw points line up well, and there’s enough airflow through the design that the sensors aren’t suffocated. You will need a small allen key to disassemble the housing.
Pop the lid and it’s tidy inside!
Housing removed
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Overview of PCB
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Sensors
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Espressif ESP32 board
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You can clearly see the ESP32 at the heart of it and a well-laid-out PCB. Sensor placement looks deliberate (good for airflow and heat isolation), and the cable routing is neat. Exactly what I would expect from a “Pro” unit. Finally there are leds at the bottom which can be set to a specific color.
Sensors
You have a couple of options when it comes to the sensors that will be installed. All of them are from Senserion with high accuracy.
- Temperature and humidity
- Additionally: CO2
- Additionally: VOC and NOx
- Additionally: SPS30 particle sensor
I'm using the Sense Pro with all of the listed sensors, so please keep in mind that you only have access to certain metrics if the required sensors are present in your device. More information about all options can be found on
Tindie.
Home Assistant integration
Adding it to Home Assistant is painless with ESPHome auto-discovery, and you immediately get a bunch of useful entities. I'm primarily using the CO2 and VOC metrics to monitor air quality. I've built some simple automations to use the controllable light entity that’s perfect for ambient feedback.
OpenAIR Sense Pro entities
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OpenAIR light toggle
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Automation example
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I love using the device’s light as a subtle air quality indicator. In the example it's based on VOC, but you can of course combine several metrics. Green when air is fresh, orange when it’s getting stale, red when it’s time to take action.
Here’s the exact automation I’m running, using the VOC index sensor from the OpenAIR Sense Pro and driving its light accordingly:
code:
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| alias: "Climate: Air quality (VOC) ground floor"
description: ""
triggers:
- trigger: numeric_state
entity_id:
- sensor.open_air_sense_pro_5328e0_voc_index
below: 150
id: voc_green
- trigger: numeric_state
entity_id:
- sensor.open_air_sense_pro_5328e0_voc_index
above: 150
below: 350
id: voc_orange
- trigger: numeric_state
entity_id:
- sensor.open_air_sense_pro_5328e0_voc_index
above: 350
id: voc_red
- trigger: time
at: "23:00:00"
id: night_mode
conditions: []
actions:
- choose:
- conditions:
- condition: trigger
id:
- voc_green
- condition: time
before: "23:00:00"
after: "07:00:00"
sequence:
- action: light.turn_on
metadata: {}
data:
rgb_color:
- 40
- 148
- 25
brightness_pct: 50
target:
device_id: cc9911744abac6684f3ea1a363b6098a
- conditions:
- condition: time
before: "23:00:00"
after: "07:00:00"
- condition: trigger
id:
- voc_orange
sequence:
- action: light.turn_on
metadata: {}
data:
rgb_color:
- 242
- 157
- 38
brightness_pct: 50
target:
device_id: cc9911744abac6684f3ea1a363b6098a
- conditions:
- condition: trigger
id:
- voc_red
- condition: time
before: "23:00:00"
after: "07:00:00"
sequence:
- action: light.turn_on
metadata: {}
data:
rgb_color:
- 213
- 20
- 7
brightness_pct: 100
target:
device_id: cc9911744abac6684f3ea1a363b6098a
- conditions:
- condition: trigger
id:
- night_mode
sequence:
- action: light.turn_off
metadata: {}
data: {}
target:
device_id: cc9911744abac6684f3ea1a363b6098a
mode: single |
Combining the Sense Pro with other OpenAIR devices
My setup is a combination of the Sense Pro for monitoring CO2, VOC and NOx, the OpenAIR mini to control mechanical ventilation and two OpenAIR valves to open or close valves. The valves are optional, but help with conserving energy. E.g. when somebody is taking a shower (first floor), an automation will set the ventilation to max speed and will set the valve that is connected to the ground floor to only 20% open. That helps to preserve the heat downstairs, while quickly bringing the humidity down in the bathroom. The overall goal is to make this as "set-and-forget" as possible. The air quality should be healthy, energy should be conserved (maintaining the air quality) and all of that needs to happen without manual intervention. I've written a couple of automations with some helpers in Home Assistant to make that happen.
Day-to-day impressions
- The Sense Pro readings are stable and react quickly to cooking, aerosols, or a closed room.
- The ambient light feedback is surprisingly useful; And you can also decide to let it respond to other triggers.
- 3D-printed shell looks “maker-y” in a good way. Clean lines, not rough. Of course you can also make your own case, just keep in mind the device needs some airflow, so don't put it in a sealed box.
Verdict:
This is a high-accuracy air quality monitor that plugs straight into Home Assistant and gives you the option to run practical automations out of the box. I'm very happy with the OpenAIR Sense Pro and would definitely recommend it. Solid build, thoughtful internals, and a great HA experience.
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de ESP32 krijgt geen spanning. Mogelijk dat er iets misgaat met de 5V output van de meanwell voeding! Ik zal je as zaterdag een nieuwe voeding opsturen /u/58518/crop55c9fb6f4244f_cropped.png?f=community)
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. Tenzij je bedrijf X bent en zeg "maar ik wil er wel 10.000 afnemen mits ze juiste spec hebben" krijg je doorgaans niks.
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