Sensor Installation

This article explains how to install sensors for temperature and humidity monitoring.

With the installation of temperature and humidity sensors, manual checks are no longer necessary. The sensors transmit real-time data directly to your Lumiform app and alert you when a threshold is exceeded or not reached.

In this article

  • In your box...
  • Set up hardware
    • Check gateway
    • Place sensors
    • Place gateway
  • Set up software
    • Create location & WLAN
    • Set up sensor
  • Do a final test


In your box...

Before you start the installation, you should check that your order has been delivered in full. The box should contain

  • Gateways (1)
  • Power supplies (2)
  • Sensors (3)


Set up hardware

Check gateway

  • Connect your gateway to a power supply by plugging it into a power socket.
  • You will know that the gateway is switched on when a small red light is lit.
  • Open the Lumiform Desktop App and go to Sensors → Gateways. In this overview, you can recognise your gateway via "Device ID" (you can find the device ID on the label on the side of your gateway). After 5 minutes at the latest, the status of the gateway changes from " Disconnected" to "Connected". Now you know that your gateway is working properly.

    If your gateway is not online after 5-10 minutes, please contact Lumiform Support (via Live Chat on the website).

Place sensors

  • The sensor records data in the range from -40°C to +85°C. You can place it anywhere within this temperature range.
  • Make sure that the surface where you place the sensor is free of grease. The surface should also be dry and ideally have a temperature above 0°C.
    Tip: We recommend that you clean the surface with a warm cloth before gluing, then dry it and only then glue on the sensors.
  • Remove the adhesive film from the back of the sensor and place the sensor in the device to be checked.

    CAUTION: Once the sensor is stuck, it is very difficult to remove and the sticker is not reusable. So think carefully about where to place the sensor before removing the film!

IMPORTANT: Depending on where you place the sensor in your unit, the temperature may vary! We recommend that you place the sensor where the office measures the temperature, i.e. at the warmest point of the appliance. But note: The temperature does not have to be the same as on the display of the unit.

Place gateway

  • Now you can plug in your gateways in their final place.
  • For optimal coverage, one gateway should be placed for each sensor within a radius of about 20 meters.
    TIP: Try to place the gateway as high as possible for optimal data transmission.
  • Set up one gateway after the other and keep checking in the app under "Sensors" whether the gateway is receiving data from all sensors in its surroundings.


Set up Software

Create location & WLAN

  • In the navigation, go to the tab Administration → Sites → Add Site and create a site where the sensors are to be used.
  • In the editing window, you will find a section 'WLAN access data for the gateways' under Title, Address and Description. Enter your primary WLAN SSID (name of the network) and your WLAN password here.
    • Note: Make sure that both the name and the password are written exactly as they should be - i.e. with commas, spaces, upper and lower case letters, etc.
    • If you want to set up a second WLAN (e.g. if there is a backup network, if one of the networks fails or similar) you can repeat the process and enter the data for the second WLAN in the fields Secondary WLAN SSID and WLAN password.
    • Don't forget to press Update Site! You will notice that everything has been saved when you automatically return to the overview and find the data you have just created.

Set up sensor

Under the tab Sensors → Sensors you will find the sensors you have created.

  • Navigate through the 'Pencil Button' to the respective setting of the sensor.
    • If not already done: Give each sensor a precise title of the appliance that the respective sensor monitors. For example: 'Freezer Left 1'.
    • Select the location where the temperature monitoring is to take place (Attention, WLAN data must be deposited).
    • Click on 'update sensor' and repeat the process for the remaining sensors.


  • Specify thresholds for temperature and humidity.
    Temperature and humidity thresholds are set to define a specific range in which the unit should measure. For example, if you enter "1" as the lower temperature limit and "8" as the upper temperature limit, the measured values should always be in the range between 1°C and 8°C. If these limits are exceeded, i.e. the temperature or humidity measured in the unit is outside this range, an alarm can be triggered (if alarms are activated). If you want to enter negative values, you can simply enter "-1", for example.
  • Set an alarm delay
    You can enter any number of minutes. The number entered (i.e. the alarm delay) is the number of minutes a temperature violation is measured consecutively before an alarm is triggered. For example, if you enter 15 in "Alarm delay", this means that a certain temperature must be exceeded/fallen below continuously for 15 minutes before an alarm is triggered. This way, short-term temperature changes, e.g. by opening a unit, will not automatically trigger an alarm if the temperature returns to the defined range within the time frame entered in "Alarm delay".
  • Alerting users
    You can select users for each individual sensor/alarm who will be alerted (by email or SMS) when an alarm is triggered. To define a new alarm user, go to "Sensors" , find the respective sensor and click on the "Edit" icon at the end of the line. Scroll down until you get to "Alert User". Here you can select the users who are to be alerted for this sensor by clicking on the boxes. Make sure that the sensor and the alarms are also active by scrolling further down and checking that both sliders are active or green.
  • Reminder delay
    • If an alarm is not resolved during a certain period of time, a second reminder can be defined for each individual sensor/alarm. If the value in the Reminder delay field is e.g. "4", a second reminder will be sent if an alarm is active for more than 4 minutes and has not been resolved.
    • To set a second reminder, go to Sensors and click the Edit button (pencil icon). Scroll down further and enter the number of minutes after which a second reminder should be sent in the "Reminder delay" field.
  • Sensor on/off
    This function can be useful if you do not want to activate a sensor yet or do not want it to be activated for a short time. For example, you can create the sensor now, place it in the cooling unit and activate it later.
  • Alarms on/off
    Alarms can also be deactivated, for example, if a sensor needs time to cool down or if a cleaning operation is being carried out that violates the sensor's thresholds over a longer period of time.
    You can create as many sensors as you like. To do so, simply click on the Create Sensor button again and repeat the entire process.

Do a final test

Physically connect the gateway in the location for which you have stored the WLAN.
Place the sensors near the receiving device.
After about 5 minutes, you should see the first readings under Sensors and your gateway should be connected to the stored WLAN (check under Gateways → Status).