MA10402 - AIR QUALITY MONITOR 
Instructions manual 
 
FEATURES: 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  Quartz clock  
  12/24h time display 
  Indoor and outdoor temperature display in °C/°F  
  Indoor humidity display in %RH  
  Air quality sensor for monitoring of indoor air quality  
  Display of CO2 equivalent values and quality indicator 
  Air quality alarm per LED   
  Low battery indicator 
 
SETTING UP: 
  Open the battery cover at the back of the transmitter and open 
the battery cover at the back of the air quality monitor. 
  Checking the correct polarization (+/- markings), insert 2 x  A, AA
LR03, 1.5V batteries into the battery compartment of the 
outdoor transmitter  insert 2 x C, LR14, 1.5V batteries into and 
the battery compartment of the air quality monitor eplace the . R
covers. 
  When the batteries are inserted, all the segments of the LCD 
will light up briey The monitor will receive data signal from the . 
outdoor transmitter in a few seconds. 
  Hold the SET button for 3 seconds to manually enter a time  . 
(See  ettings  “Manual S ”.)
 
Notes  : 
  T equivalent COhe  2  in ppm will only be displayed after 30 
minutes. 
  The air quality sensor will take up to 5 days after inserting 
battery to condition itself for the room it is placed. If the unit is 
placed into another room, there might be a reconditioning time 
of several days as well. 
  Insert the holder to the bottom of the outdoor transmitter for 
table standing or insert it to the back of the transmitter for wall 
mounting purpose. 
  Set the air quality monitor in a dry and shaded interior and 
away from sources of interference, such as televisions or metal 
plates. The transmitter should be mounted protected from rain 
and direct sunlight. 
 
REPLACING THE BATTERY IN THE AIR QUALITY MONITOR 
The outdoor transmitter uses 2 x  A, LR03, 1.5V batteries. AA
The air quality monitor uses 2  C LR14, 1.5V batteries  x  ,  . 
To replace the batteries, please follow the steps below: 
  Remove the cover at the back of the air quality monitor or the 
outdoor transmitter Remove the old batteries and wait 2 . 
minutes before the next step. 
  Insert batteries observing the correct polarity (see marking). 
  Replace compartment cover. 
 
BATTERY CHANGE: 
It is recommended to replace the batte  regularly to ensure optimum ry
accuracy of the unit. 
 
 
 
 
Add device to MOBILE-ALERTS system 
(MOBILE ALERTS gateway needed, sold separately) 
 
Open the app, dashboard is displayed. Tap "Add new sensor" and 
scan the QR code on the back of the MA10402. Then set a name for 
the sensor. To set a name, select the transmitter and then tap on the 
left area of the pencil icon in the upper right. 
 
Read measurements 
Now you can read the measurements on your mobile phone. 
 
BUTTON FUNCTIONS: 
The Air Quality Monitor has  easy- -use buttons (at his back) : 4  to
 
 
 
 
 
 
 
 
 
 
 
 
SET button: 
  Press and hold to enter the manual setting modes:12/24 hour 
time display, manual time setting,  ºC / ºF temperature display,  
  Exit the manual setting mode 
 
+ button: 
  Press to change values of all manual settings by 1 unit.  
  Press and hold to speed up manual setting. 
 
ALERT button: 
  Press to set the air quality alert to ON / OFF 
 
MIN / MAX button: 
  Press to view MIN and MAX temperature and humidity values  
  Press and hold to reset recorded MIN and MAX values 
 
LCD SCREEN 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
MANUAL SETTINGS: 
The following manual settings can be   in the setting mode: done
  12/24 hour time setting 
  Time setting 
  ºC / ºF temperature display setting 
 
Press and hold the SET button for about 3 second to enter the setting 
mode: 
 
12/24 HOUR TIME DISPLAY SETTING 
   (default 24hr) “12hr” or “24hr” flashes in the LCD.
  Press the   button   +to select the “12hr” or “24hr” display mode.
  Press the   button to conrm  continue to the SET and  manual 
time setting. 
 
MANUAL TIME SETTING 
To set the clock: 
  The hour digits start ashing in the time display section. 
  Press the    tton to adjust the hours and then press the +bu SET 
button to go to the minute setting. 
  The minute will be ashing. Press the   button to set the +
minutes. 
  Press the   button to conrm  continue to theSET and   °C/°F 
temperature setting. 
 
°C/°F TEMPERATURE UNIT SETTING 
The default temperature reading is set to °C (degree Celsius). To 
select °F (degree Fahrenheit): 
   button to toggle between The “°C” will be flashing, use the +
“°C” and “°F”. 
  Press the   button to conrm  . SET and exit the manual settings
 
MIN/MAX values for temperature and humidity 
Press the   button for displaying of max./min. of temperature MIN/MAX
and humidity. Press and hold the   button to reset recorded MIN/MAX
MIN and MAX values. 
 
AIR QUALITY ALERT SETTING 
Press the   button   activate the air quality alert. The air ALERT OFF to
quality alert OFF icon indicates that the alert is set o. No air quality 
OFF icon indicates that the alert is activated. 
 
Note: 
The LED Alert blinks, if the air quality alert is activated and the 
Equivalent CO2  ppm is higher than 1500ppm: 
 
AIR QUALITY INDICATOR 
The air quality indicator is located on the bottom of the LCD. It 
changes from   according to the equivalent CO“Green” to “Gray”by 2  
ppm value  .  
 
 
 
 
 
 
 
 
 
 
 
 
* The air quality value shown, after sensor conditioning, may dier 
  - 250 ppm.+/  
 
Note: 
A 9-level bar graph is  reenused to indicate “G ” to “Gray” air quality 
level in the surrounding environment: 
 
 
Troubleshooting 
When no sensor readings are displayed in the app, check if the green 
LED on the gateway is permanently lit. If not, please check if: 
  The gateway is properly connected to the power plug, the 
router and is turned on. 
  Restart the station by removing the batteries for a minute and 
reinserting, to restart the device. 
  Your phone is connected to the internet. 
  The signal is weakened by thick walls and ceilings. Put the 
device in operation near the gateway and then locate a suitable 
location. 
 
More information and detailed instructions can be found in the app at 
“Info” or at www.mobile-alerts.eu 
 
Summary of the Declaration of Conformity:  We hereby declare that 
this device does comply with the requirements of RED Directive 
2014/53/EU. 
The declaration of Conformity can be found at: www.mobile-
alerts.eu/technoline/doc 
 
SPECIFICATIONS: 
Recommended temperature range: +5ºC to +40ºC / +41ºF to 104  ºF
 
Temperature measuring range: 
Indoor     - 5ºC to +59.5ºC with 0.5ºC resolution /  :  9.
14.0ºF to +139.5ºF with 0.5ºF resolution 
(OFL displayed if outside this range. In degree F 
display, OFL will displayed when over 99.9ºF) 
Outdoor:     - 39.9ºC to +59.9ºC with 0.1ºC resolution /   
-39.8ºF to +139.8ºF with 0.2ºF resolution 
(OFL displayed if outside this range. In degree F 
display, OFL will displayed when over 99.9ºF) 
 
Relative humidity measuring range: 
Indoor:      20% to 95% with 1% resolution  - -(display “ “ if 
temperature is OFL, except when the temperature is 
100ºF to 139.8ºF; display “19%” if < 20% and “96%” 
if > 95%) 
 
Equivalent CO2  ppm measuring range: 
450ppm to 3950ppm with 50ppm resolution (display OFL > 3950ppm) 
 
Measuring intervals: 
Indoor temperature checking interval:  every 16 seconds    
Indoor humidity checking interval:  every 16 seconds 
Air quality level checking interval:  every 3 minutes   
 
Transmission: 
Transmission range: 100m / 330 feet 
Transmission frequency: 868 MHz 
Maximum transmission power MA10402 3.8 dBm : 
Maximum transmission power TX47- 2 dBm IT: 5.
 
MA10402 dimensions (L x W x H):   142,5 x 117,1 x 41,6 mm 
MA10402 power consumption:      2 x C Baby LR14, 1.5V
TX47-IT dimensions   (L x W x H):  32 x 87 x 17 mm
TX47-  power consumption: IT    2 x LR03 Micro  , 1.5V AAA
 
Trouble shooting 
Keep in mind that the outdoor transmitter only has the optimal 
transmission range in open area with no obstructions. Each 
obstruction between the transmitter and the station (roof, walls, oors, 
ceilings, thick trees, etc.) will eectively cut the transmission range in 
half. 
 
Liability disclaimer 
  The electrical and electronic wastes contain hazardous 
substances. Disposal of electronic waste in wild country and/or 
in unauthorized grounds strongly damages the environment. 
  Please contact your local or/and regional authorities to retrieve 
the addresses of legal dumping grounds with selective 
collection. 
  All electronic instruments must from now on be recycled.  User 
shall take an active part in the reuse, recycling and recovery of 
the electrical and electronic waste. 
  The unrestricted disposal of electronic waste may do harm on 
public health and the quality of environment. 
  Reading of the User manual  is highly recommended for the “ ”
benet of the user. This product must however not be thrown in 
general rubbish collection points. 
  The manufacturer and supplier cannot accept any responsibility 
for any incorrect readings and any consequences that occur 
should an inaccurate reading take place. 
  This product is designed for use in the home only as indication 
of the measured data.