I really should do a video review, these are fantastic little units, compact enough you can put them nearly anywhere, anywhere you want really.
So first of all, I have 2 of these devices for personal use and a further 7 for work, I recently got another 3 for personal use and thought to write an in-depth review based on my own experience.
In short, these units are mini data loggers that run off 3, AA batteries and have both WiFi and Bluetooth connectivity
I have had 2 of these units for a little over 10 months now, both are configured to upload data once every 60 minutes over the WiFi and even still they are between 50-75% remaining battery life on the original, included batteries.
I feel it is important to mention before I go to far that I have read some other reviews on here and believe that they may have been taken out of context to their issues, specifically the permissions request by the app on install.
As mentioned, by others that the app will not work if you do not grant it access to the Location service on your phone.
While many believe this is to be unnecessary, it is actually a requisite by all Mobile phone developers who sell devices in the EU since Android 9 and even as far back as iOS 7
This is due to GDPR and other privacy concerns that previously mobile phone companies didn't need to inform the phone users how their data was being used, but now it is highlighting that location can be obtained from Bluetooth, WiFi and GPS (In order of accuracy) due to EU law.
So while the configurarion of the device is via Bluetooth and as the device you are connected to has its own network connection, location services will be required, however reassuringly, it does not need accurate location (GPS) and only uses Bluetooth while the app is in use (to communicate with the sensors)
Rest assured, I've tested it thoroughly and at no point has any identifiable location data been sent either to the sensor or to the network via the app.
So back to the device itself.
It is a great little unit, there is not many (if any) like it on the market that allow WiFi uplink of logged data so you ca retrieve it while away from home (I've read my data while away on holiday etc without an issue)
The unit itself, takes reading of both temperature and humidity every 60 seconds and then later uploads it to the network so you can retrieve it wherever you are when away from the device.
The device only works on 2.4ghz WiFi, which is a good thing as 5ghz WiFi lacks the range of 2.4ghz (one word of caution if you've never worked with split signal WiFi, find out how to get into your WiFi routers settings and rename the 5ghz signal, like "network_5g" and rename the 2.4ghz as "network_2" that way when you come to set up the sensor and you try to pair it to the 2.4 network you know it's connected to the right signal (usually most ISP routers have the same name for both 2.4 and 5ghz WiFi signals and sensors like this are unable to tell which one is which)
The app has a great chart layout, where you can choose to see it in either Celsius or Fahrenheit and you can also zoom to your own view range or choose one of the predefined views, either hour, day, week, month or year.
The app also allows you to export the data via email and can either be done on request or even scheduled so it automatically sends the data to you on the same day each month for example.
As the device itself has no buttons or switches on it, all of the configuration is done via the app over a Bluetooth connection. The configuration choices allow you to;
• Unique user assignable name/ID
• Device safety (to block unwanted users)
• Temperature alarm set points (upper and lower) note there is no sounder on the device, alerts are via the app
• Humidity alarm set points (agaim, upper and lower)
• Calibration adjustment for both temperature (+/-3'c) or humidity (+/-20%)
• Data refresh frequency (WiFi) either 10/30 or 60 minutes
• User guide (this menu is also used to pair the device with Alexa)
Also, note that the data refresh rate setting does not affect how often the temperature or humidity reading are taken as these are automatically taken every 60 seconds and stored on the device, the data refresh rate is just how often this data is synchronised with the network via 2.4ghz WiFi.
I hope you find this review useful, if you have then please upvote it below!
Did exactly what it said on the tin.
This does the job but is let down by a lack of 'Works with Google' I assumed, wrongly it would. Otherwise it is really good in my greenhouse.
Perfect connectivity and great results. Ideal for greenhouse and it’s over 20M away for router. A*
Works well and was easy to set up for monitoring the temperature and humidity in my greenhouse. I have it set to send notifications to my iPhone when the temperature gets too cold or too hot.