NEO NAS-TH02B test: a simple, complete and versatile ZigBee multi-sensor ...

Our opinion on the Neo multisensor

ZigBee Neo Multi Sensor


We recently introduced you to the Moes ZSS-ZK-THL, temperature, humidity and light sensor interesting but which had some reliability problems. We are back today with a find that will delight lovers of this type of all-in-one module: the NEO NAS-TH02B multi-sensor.

This sensor temperature, relative humidity and light works under ZigBee via a Tuya Hub / Smart Life. Graphics, data extraction, multi-sensor scenarios, reporting under Alexa… The possibilities of this module are very interesting… especially under Tuya.

Neo NAS-TH02B: a sensor with multiple functions


Le NEO NAS-TH02B sensor comes in a small white cardboard box of 9,5 x 8,5 x5 cm, white and neutral. The only hint of madness in this crazy world, a black and white ZigBee Alliance sticker “Temperature & Humidity Sensor”. Inside, the module is wedged in a plastic shell to protect it.

The NEO NAS-TH02B has a rather peculiar shape. It is a parallelepiped of 84 x 55 x 32 mm and about 110 grams. He is quite stocky but can find his place everywhere. Its liquid crystal display is relatively large at 7 x 4,5 cm. It is quite visible and readable, even from the side.

Note, moreover, that LCDs (Liquid Crystal Display) were invented in 1971 and went into color in 2000. How does it work? It is simple in practice because we vary the position of a liquid crystal with an electric field.

It works with two AA batteries included. It is made to be placed on a piece of furniture or a table but it is possible to hang it on the wall via two notches provided for this purpose.

The use is relatively simple because only two buttons allow to "control" it:

  • Reset : a long press for 5 seconds allows it to enter pairing mode. We will come back to the use part.
  • ° C / ° F : as the name suggests, come and define your preferred unit of measurement between ° Celsius (invented in 1742) or ° Fahrenheit (created in 1724).

Le light sensor is on top of the module, between the two buttons. Due to its location, the measurement will be distorted because only the luminous flux from above taken into account, and not the atmosphere, and the phenomenon of shadow projected on the sensors in the event of grazing light, or not, will also lower the value.

The screen with 5 display zones:

  • Network reception : the Wi-Fi symbol will show you, if it is complete, that the module is ZigBee connected to the network. If there is only one point, it is in the process of pairing or it has gone off hook.
  • Luxury : here you will have the luminous flux in lux or in lumen per m².
  • Battery : well ... the battery level what
  • Temp : temperature in ° C or ° F
  • Hum : humidity in% RH (relative humidity)

Let's look at the characteristics of this module before moving on to its use ...

Technical specifications

  • Brand Name : NEO
  • Model : NEO NAS-TH02B
  • Origin : made in China
  • Dimensions in mm : 84 x 55 x 32 mm and approximately 110 grams. 7 cm x 4,5 cm screen
  • Food : 2 AA batteries, included.
  • Connectivity : ZigBee 3.0
  • Application :Tuya/ Smart Life. JEEDOM compatible, with the "ZigBee" plugin but not fully supported at the present time. Also works partially with the Hub of compatible Echo devices.
  • Measuring range :
    • Temperature: -10 to 60 ° C
    • Humidity: 0 to 100% RH
    • Brightness: 0 to 157000 lux
  • Voice use : Yes, partially
  • Remote upgrade :OTA
  • Programming : Yes, via the Tuya app / Smart Life

This NEO NAS-TH02B multisensor has very interesting features. First of all, the brightness measurement range will not make it saturate as is the case with the Moes. 157000 lux corresponds to a beach sun, without shade and very dazzling. Running by Tuya / Smart Life, you will be able to integrate it into routines according to temperature, humidity but also brightness and make the link with all the other devices under the application, ZigBee or Wi-Fi.

NEO NAS-TH02B: installation and use of the ZigBee multi-sensor

Use under Tuya / Smart Life

Neo has decided to make its products fully compatible via ZigBee gateway running under Tuya / Smart Life. For our test, we used a Zemi gatewaysmart (the Wireless), but the operation will be the same with another brand.

To install it, you need to enter your hub and then do " add a sub-element ». Press the reset button for 5 seconds to enter the module into pairing mode. You will then see a white LED that will flash on the bottom of the LCD screen and the "Wi-Fi" logo will turn into a dot ". ". Once detected, the LED turns off. A good way to see if he has hooked the network. When it's all over, come and change its name if you wish. If you have already activated the skill under Alexa, the module goes up directly.

By going to your sensor, the "home page" will display the temperature, relative humidity and brightness at time t et two curves (T ° C and% RH). By going to the bottom of the page, you will also have access to record history (in case of exceeding the alert thresholds) and more general parameters. You also have an indication of the quality of your air with a specific phrase.

By clicking on the curves, you can access them by days, months or years. You also have the option of extracting these curves and receiving them by email. Pretty good.

The settings via the app are quite simple. To enter it, go to " Setup the ».

  • Visualization of battery level.
  • Determination of temperature unit
  • Creation of alarm ranges : you will come here to define the temperature and humidity ranges (minimum and maximum) below and below which you can receive alerts. Very convenient.
  • Buzzer switch : your module will sound like an alarm clock. Usefulness ? Not found ...
  • REACH or not the alerts high and low humidity and temperature.
  • SMS and telephone notifications: optional payable via Smart Life. In any case, you will receive a notification on your smartphone via an application pop-up.

The big advantage is that via its use under Smart Life, you can come and create scenarios that can put into action all the devices attached to Tuya / Smart Life whether ZigBee or Wi-Fi. You will be able to take into account in these scenarios all the quantities monitored by the module: humidity, temperature and luminosity. The list is quite impressive. We refer you to our tutorial Smart Life if you don't know how.

You will be able to turn on lights, open shutters or activate air conditioning if an upper or lower alarm is activated, if the brightness falls below a certain threshold or if the temperature at a time. t is too low… So multiple possibilities. It is the most complete that we have been able to test to date.

With Amazon Alexa

If you have activated the skill Alexa, you will have access to your module directly in the application. These types of devices are still very poorly supported by Amazon. But strangely, in this case, you have a battery and humidity display by opening the multisensor. The temperature is not displayed but you will get it by asking Alexa, by voice… This is the only value that can be used in this way.

You can also install it directly through the hub of any of your compatible Echo devices (Studio, show 2, show 10, echo 4…). But in this case, no information about the battery or humidity. Only the temperature will rise to the voice. The interest is therefore limited.

With the ZigBee Jeedom plugin

If you install it under Jeedom (we refer you to our ZigBee Jeedom tutorial to know how), as announced at the beginning, only the brightness will go up. Again, limited interest. But this being due to an update from the manufacturer, an upcoming one may well resolve this. We are waiting for this impatiently !

In use, we are a relatively reliable product, if we compare it to other sensors in our possession. The differences noted (with the Shelly for example) are of the order of 0,2 to 0,3 ° C and 0,3 to 0,5% RH, which is relatively low. For the brightness, as said in the preamble, the values ​​are rather informative. Considering the location of the sensor, you will not really have a measurement of the ambient brightness and it will also be underestimated. The comparison with a calibrated luxmeter indeed shows a control value of 800 lux and a modulus value of about 220 ... On the other hand, if a ray of sunlight falls on it, it will not get into error like some of these competitors thanks to its relatively wide measuring range… A good thing then.

In short, it is not a precision luxmeter, but a device rather suitable for measuring changes in brightness over time. Once set up, assume that the measurements are not right but simply repeatable. Then define the limit values ​​corresponding to a brightness that seems low to you, or conversely too high, and use these "limits" as benchmarks, either for yourself or in a scenario.

We invite you to get a more precise idea of ​​this multi sensor via our video (like, subscribe, it's always a pleasure) :

Our opinion on the NEO NAS-TH02B

In conclusion, the temperature, relative humidity and light sensor NEO NAS-TH02B is a very nice surprise. Operating in ZigBee 3.0 via a Tuya hub / Smart Life, it can measure temperature from -10 to 60 ° C, relative humidity from 0 to 100% RH and brightness from 0 to 157000 lux.

The operating ranges are very interesting and relatively reliable, except for the brightness (fault with a sensor on the top). Under the Tuya application, you will have access to live data but also extractable curves. You also have the option of generate alerts according to criteria that you will have determined on the 3 sensors but also, notable thing, to create scenarios according to temperature, humidity and / or brightness. Which is rare enough to mention. With Alexa, you can ask your assistant for the temperature while the humidity will only be displayed in the application (nothing for the brightness).

Note, disappointingly, that under Jeedom, following an unfortunate update, only the brightness goes up. Which makes it unusable or almost ...

For € 19,99 at Domadoo, it is one of the most powerful and versatile multisensors we have tested. An excellent quality / price ratio.

Did i choose Alexa or did she choose me? Let's say that as a beta tester, it's a bit of both! And I do not regret having met our favorite assistant nor this adventure undertaken with Alexien Modo. Technophile, self-taught and loving popularization, I try to make our common passion easy to access!