Review: Kaiterra Sensedge Mini for Business and Green Buildings

There is a demand for Green Buildings lately, which focus on the comfort and health of the building’s occupants. Energy efficiency was the original target for most of the green buildings certifications programs, but they have evolved, and they now focus on many more aspects of the indoor environments. Indoor Air Quality has become the number one priority for many green building certifications, and in order to be certified, there are strict rules for ventilation and AQ monitoring.

Here comes Kaiterra Sensedge Mini, which is a RESET certified indoor air quality monitor. The Sensedge Mini is a calibrated real-time monitor that has to be placed in buildings that wish to obtain a Green Buildings certification.

The Sensedge Mini uses two removable sensor modules to replace the traditional, costly calibration processes for long-term accuracy with minimal maintenance.

Technical Specifications

  • Calibrated PM2.5 Sensor
  • Calibrated VOCs Sensor
  • Calibrated Carbon Dioxide (CO2) Sensor
  • Calibrated Temperature Sensor
  • Calibrated Relative Humidity Sensor
  • USB Type-C
  • Wi-Fi
  • RS-485 4-pin port (low voltage direct wiring for power, or for communication)
  • Ethernet (Power over Ethernet POE Coming soon)
  • BACnet (Coming soon)
  • Cloud Storage and 1-h Local Storage

Hardware

As I have mentioned before the removable sensor modules are calibrated and they come with a lab certification where you can read the test results between a reference monitor and your particular modules.

I didn’t disassemble the device but the PM sensor looks similar to the Plantower PMS5003. However, I think they use the Plantower PMSA003. They are almost identical with different airflow holes and size as the PMSA003 is smaller.

From the calibration sheet, I can see that the CO2 sensor is very accurate and it is placed in the main unit rather than in a module. I don’t know which brand/model is as it is hard to see inside.

The VOC sensor module in comparison tests that I did against other VOC sensors makes me believe that it uses the Sensirion SGP30, again this is a speculation of mine. Interestingly, the module has a fan to draw air inside the sensor, something uncommon but good.

Dashboard

The web dashboard is available for all devices Desktops/Tablets/Phones, and it is divided into three categories.

My Devices where users can see with a glance all the available devices and their corresponding AQ index.

Compare where users can compare different devices between them. For example, you can compare the AQ information between rooms or floors if the building is big.

Kiosk View where users can create public URLs in order to display air quality information in buildings, for example, in the lobby of a hotel or at the front desk of an office building as it is required by some Green Building certifications. You can merge all available monitors or have separate AQ information for each monitor. Finally, there is an option to include the outdoor AQ information too, which is quite handy. Feel free to browse the image gallery below with all the combinations.

My Experience

The installation process of the device is easy if you choose the Ethernet route, which is plug and play. If you wish to connect the device to the cloud via the WiFi then you have to download a special software called “Kaiterra Configuration Tool” from Kaiterra’s website in order to introduce the WiFi network information like SSID and password. The software is available for macOS and Windows, and it offers more device settings.

At first, I though it uses an eCO2, which means equivalent CO2 from the VOC sensor via an algorithm, but I ruled out that hypothesis after many tests. I tested the device against many other indoor AQ monitors and I am happy with the accuracy of the measurements for all the sensors.

Although the device has some LEDs for system status indications, they are hidden once you place the cover. I wish it had one small Air Quality LED available and visible. In Kiosk View, I wish all the URLs the users had created were saved in a list for access later.

Conclusion

The Sensedge Mini is a great and accessible choice for those that wish to get or not air quality certification by RESET, LEED, WELL, and others. The removable sensor modules reduce maintenance costs and ensure accuracy, something really important when you want to offer comfort and health to the building’s occupants. Nowadays, and due to the pandemic of COVID-19, it is important to keep ventilation rates optimal in indoor environments by checking CO2 concentrations, the Sensedge Mini can solve this problem.

Watch Virtual Demo Video (2 min) here

7 thoughts on “Review: Kaiterra Sensedge Mini for Business and Green Buildings

  1. Thank you Sotirios for your new review.

    Two questions about the Kaiterra Sensedge:

    1. The sensor modules can be swapped. Are there modules also for O3 and NO2? I ask this because air pollution is not only made up by PM and VOCs, but also by dangerous gases such as NOx and O3. If you use a HVAC system that has a filter for PM but not for gases in your green home, how can you be sure that your HVAC system is not bringing dangerous amounts of NO2 and O3 into the house? Your PM is low, you feel safe, but you don’t know whether O3 and/or NO2 are good or not. How can you get a Green certification in this case? That doesn’t look smart.

    2. After how long do you need to recalibrate the modules? And, recalibration means throwing away the old modules and buying new ones? Isn’t that too costly?

    Thanks again!

    Andrea

    Liked by 1 person

    • Hello and thank you for your comment.
      The modules are swappable but at the moment there are not NO2 or O3 modules available. Hopefully in the future.

      Green building certification programs don’t cover NO2 or O3 but they focus on common indoor pollutants and temperature/humidity. Maybe in the future they will evolve as well. In the past they used to focus only on energy consumption so there is some progress.

      During the recalibration process they will send you new modules and you will send back the old ones. They are not going to throw them away. The life span of the module depends on the location and the concentrations of the pollutants. Approximately, 2 years for an indoor PM sensor.

      Liked by 1 person

  2. Hi Sotirios – I’m getting very interested in the IAQ space. Can you share any info about the lifecycle cost of replacing sensors every year? Are the cartridges 25% of the total cost, 50%? Intrigued by the long-term economics of such devices, and wondering if many applications will ever actually replace the sensors as needed.

    Liked by 1 person

    • Hi Patrick, thank you for your interest.
      This device is meant for professionals and B2B cases as a result prices are not available to the public and you have to contact the company in order to discuss quantities.

      In most cases particulate matter sensors can last up to 2-5 years indoors, it depended on the pollution they are exposed to.

      Some other sensors like CO2 can last up to 15 years.

      In the case of the Kaiterra SenseEdge mini you don’t need to replace the sensors cartridge if they aren’t exposed to high concentrations or if you don’t want to have a green building certificate.
      Green Buildings Certificates like WELL or RESET require constant validation of data as a result in some cases you need to replace the sensors in order to comply.

      Like

  3. Please can you share me little information about how much profit can someone make each month from installing one kaiterra sensor?

    Like

    • Hi, I am not fond of the crypto project plus prices are very volatile so a profit may vary depending on the day. I don’t think it was designed as a profitable solution rather than a way to motivate people to become aware of the air they breathe.

      Like

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