I tried "Sparoma PTH-8", which can measure CO2 concentration and temperature/humidity and record smartphone.
Sparoma's "PTH-8" is a CO2 sensor that detects the concentration of carbon dioxide (CO2) in the air, displays it in real time, and saves logs to a smartphone via the Internet.Although it is sold for 12,900 yen on Amazon, 3,000 yen off coupons were distributed on June 8 at the time of writing the article, and could be purchased for 9,900 yen.At present, it is 2,000 yen off, and it can be purchased for 1500 yen by entering the coupon code "DPLW8OEC".
It seems that more and more people have introduced CO2 sensors as a guide for ventilation due to the popular new colon virus.There are various types of CO2 sensors, but the NDIR method, which is used in this unit, is relatively popular and popular.Originally it was a high -priced product, but recently many models cost less than 10,000 yen even if the NDIR method is used.The point is that the PTH-8 is equipped with a smartphone linkage function with Wi-Fi, and if you use a coupon, it costs less than 10,000 yen.
The display is simple based on the 7 -segment LED, and the CO2 concentration is displayed large in PPM, and the temperature and humidity are displayed below.At the top is an LED that glows green/yellow/red, and under the unit of PPM, there is an expression mark.If the CO2 concentration is 700 ppm or less, each is green and Nico Nico mark, but if it exceeds 700 ppm, the LED will be yellow, the icon will change expression, and if it exceeds 1,500 ppm, it will look red/dissatisfied.That's all you can do with the body.
製品パッケージ背面にキックスタンドを装備し、立てられる
According to the page of the Cabinet Secretariat's "COVID-19 AI Simulation Project", the CO2 concentration of the outside air is about 415 ppm, and in the room, it feels "relatively good" up to about 700 ppm, and after exceeding 1,000 ppm.He says, "This room is bad."
When I put this product in a 6 -tatami room and tried it, it was in the 400 ppm range in the middle of no people in the room, but if I was alone, it went up to the 600 ppm range in about 2 minutes, and then went up and down the 700 ppm level.It seems that the accuracy is not bad because it exceeded 1,000 ppm when placed near the exhalation.The display of the temperature and humidity also moves well according to the surrounding environment, and the response looks good.However, it is written in the instructions that the alarm sounds will sound if it exceeds 1,500 ppm, but it did not sound within the range I tried (honestly not sounding).
Cooperation with smartphones uses an app called "TUYA SMART".Download the tuya Smart, create an account appropriately, and press the "B" button on the back of the main unit twice to pairing mode, so you can add a device simply by specifying the access point name from the tuya.。The wireless LAN is 2.The 5GHz band is not supported with only 4GHz.
As the function of the app, in addition to the log acquisition, it seems that it is possible to link with other home appliances when the specified value becomes, but this time only PTH-8 is available, and the other compatible home appliances are unknown.I haven't tried it.For the time being, the only thing you can do is the log acquisition.
Tuya Smartアプリ。新規登録の場合、ここからメールアドレスを入れると認証コードが送られるので、先に進む当然ではあるのだが、このアプリはある程度の権限が必要だデバイスの追加。どうも汎用的なものも対応するらしい本体背面のBボタンを長押しするとWi-Fiがオンになるので、アプリから検出できる。あとはアクセスポイント(2.4GHzのみ)を指定してパスワードを入力するだけだあっさりPTH-8が追加されたほかの家電やAlexaとの連携もできるが、今回はPTH-8のみなので何もできないログの取得をはじめたところ筆者が部屋で活動するにつれ二酸化炭素濃度が上昇しているのがよくわかるThe PTH-8 itself operates with Micro USB power supply, but it also has a built-in battery that can operate for 20 hours, so if the wireless LAN in the home arrives, you can get CO2 concentration and temperature/humidity change even in places where there is no outlet.。In that sense, it is a convenient one.