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First Cypress

135 orders since Sep 01, 2015

Hong Kong, SAR, Hong Kong, Hong Kong

Ships from Hong Kong.

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LiV Pi. Know your air!

Overall Rating:

Review Breakdown

5
3 4
3 3
1 2
0 1
0

Average Ratings

Product: (4.86)

Documentation: (4.14)

Shipping: (4.71)

Communication: (4.43)

All Reviews

Ilkka | Oct. 18, 2018

This is a nice device, not too expensive for hobby.

For Senseair K30 CO2 sensor

The device works fine. So far I've only tested the analog output connected to Arduino A/D converter. On my request, the seller was able to disable the automatic calibration as in my application the CO2 level never reaches 405 ppm and I have to do manual calibration outdoors. I blundered and reverse connected an external +5V power supply (idiot me). Amazingly, the unit still seems to work normally.

Lieven | March 25, 2018

CO2 sensor

For Arduino CO2 kit 2: sensor, LCD screen, cables

We received the CO2 within a couple of days (from Hong Kong to Belgium)
The sensor works as a charm, the data seems to be correct.
At the moment, we read the data via the arduino serial output.
The LCD screen was not yet showing data as we may have used the wrong LiquidCrystal_I2C library. But since we're not yet using the screen, we have all we want. Thanks.
A small aircraft will do measurements in the atmosphere. (as a high school science project)

Konstantinos | Sept. 22, 2017

Fast delivery, proper packaging, excellent communication

For Senseair K30 CO2 sensor

The delivery was fast, the seller's response was immediate and the packaging of the parcel as good as it has to be.

Xabier | Aug. 4, 2017

Works Flawlessly and arrived in 8 days

For Senseair K30 CO2 sensor

I needed a easy to use Co2 meter that wasn't expensive for testing air quality in some buildings. The K30 sensor have been a good choice. It have been very easy to interface with an Arduino, although I used the serial connection instead of the reccomended SPI interface. The sensor gives a correct reading only 4 seconds after the Powerup.

Maxim | April 30, 2017

Best of the best

For Senseair K30 CO2 sensor

Very good sensor, very good price, very good seller. I won't purchase more lot this sensor on this seller if possible. Thanks.

Pavel | March 6, 2016

Best price I've found, works OK, needs 5V

For Senseair K30 CO2 sensor

It works OK with Arduino as well as with ESP8266 (modified chinese ModeMCU clone in order to provide 5V). Make sure you provide 5V for it, won't work at 4,5V. Best price, thanks.

Tony | Dec. 15, 2015

5 Stars for this product & Company!

For Raspberry Pi - LiV Pi Expert for RPi model B

We have 3 LiV Pi units running in our facility. We use them for tracking Co2 and Air Pressure. We currently are using both the browser graphs and the ThingsSpeak.com interface on the cloud. These units work awesome!

I'm not a real RP geek of Linux user so I needed a lot of help, Alfred is understanding and really wants you to get the best out of his creation so his support is second to none.

These 3 units have not missed a beat in over one month and we are looking to expand on the capabilities of LiV Pi and I know that Alfred and his team will be there to help along the way.

Website, shipping and communication all exceptional. Great work!
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