Frequently asked questions

The answers that may help you with your questions.

Place the central receiver (E-Connect) in the caravan or motor home.

After this you can decide which module you want to add. This way you can very easily adapt the ‘system’ to your own needs.
You can add the module you purchase very easily in the App. As soon as the new module is added you will see the corresponding data directly on your smartphone or tablet.

Once you have installed the ‘system’ according to your needs, you can enjoy a safe and comfortable holiday.
If it is not quite clear yet? Then take a look at this video.

The average customer finds the system relatively easy to install. For those who prefer not to do this themselves, it is possible to have this done (for a fee) at your camping shop.

Make sure your phone or tablet has a full battery and that there is a stable internet and Bluetooth connection while updating the system.

We advise our customers to connect the system to a 12V battery at all times.

Yes, it is! We take both caravan and motorhome holders into account. At the moment, the E-Load (ball pressure gauge) is the only module that is not suitable for the motorhome. Tip: the E-Pressure is suitable for 2, 4 or 6 wheels.

Make sure that the E-Connect is mounted as high as possible in the caravan or motorhome. Also watch our installation video for the E-Connect and our advice for each type of camping vehicle.

All you have to do is install the app on your new phone and log in with your login details. Nothing else. If you turn on Bluetooth, you will be connected to the E-Connect again.

The very first time you use the App, you need to register and log in. This requires internet access. Besides, when you download an update of the app, you will need internet.
Then the E-Connect needs to be updated after it is connected to 12V. This also requires internet.
Once the system is installed and you are logged in and use the app, you do not need to have an internet connection anymore. The app works via a Bluetooth connection.

You can use your account to log in to multiple devices. However, it is not possible to use multiple devices at the same time. Only one device can be connected to the E-Connect at any given time.

Yes you can. To do so, go to Settings and click on the relevant item under General. Change the setting and confirm the new data. Then close the app completely or restart the phone to make the change final.

Yes, they can. To do so, they must download the E-Trailer app and log in with the details of the person who has registered the system.

Make sure that the seller delivers the QR code cards of the modules installed together with the caravan. Please contact E-Trailer for further support.

You can disable the demo modules in the general settings of the app.

The E-Trailer app also responds when it is open in the background. Messages from, for example, E-Pressure will still be displayed on the screen.

The app runs on iOS 10.0 and Android 6.0 and higher.

You can order a new digital QR-Code for almost all modules from us. The costs are € 45,00 each.

No, the app only works on smartphones or tablets with Android or iOS.

Questions about the modules


You can install the E-Connect very easily by following our step-by-step plan.

Step 1: Read the manual carefully.
Step 2: Place the E-Connect in the desired location and screw it in place using the screws provided (click here for the best location per type of camping vehicle).
Step 3: Connect the E-Connect to the battery. (12V)
Step 4: Install the App and register yourself.
Step 5: Scan the included QR-Code and follow the steps in the App.

Do not forget to update the software on the E-Connect.
For more information, please watch our installation video.

1. Go to the main app screen.
2. Click on Settings.
3. Click Check for updates.
4. Once an update has been installed, it is advisable to click Check for updates again. More than one update may be available.
5. When the app indicates that your system is up to date, all updates have been installed successfully.

To protect your battery, the E-Connect switches itself off at a voltage below 10.8 V. As soon as your battery is sufficiently charged, the E-Connect switches itself on again. Please note that some batteries switch themselves off automatically after a few minutes of inactivity. The E-Connect will then also be switched off and will no longer transmit any data.

Our advice is to connect the E-Connect to a (small) battery.

Since the E-Connect always uses some voltage, it is wise to disconnect the E-Connect from the battery when it will not be used for a longer period of time. This will prevent the battery from draining.

Make sure that the E-Connect is installed as high as possible and at the front of the camper. The E-Connect is best placed high up in the middle of the camper. Check the Bluetooth connection to the phone during installation.


You can install the E-Pressure module very easily by following our step-by-step plan.

Step 1: Read the manual carefully.
Step 2: Scan the included QR-Code and follow the steps in the App.
Step 3: Screw the anti-theft nut on the valve and install the sensors when the app asks for it.

If you have more than 2 tyres, first scan all QR-Code cards and then start the calibration!

The E-Pressure is suitable for 2, 4, 6, 8 or 10 tyres.

You certainly can. You can add up to 10 wheels in the system.

It takes some time for the module to update. Without movement it will take 10 minutes before an update is given. When you are driving the information will update every minute. When there is a warning/message this happens every second.

When the vehicle is stationary, it will take 10 minutes before an update is given in the app. If you want to know how the pressure is faster, remove the sensor from the valve and screw it back on again. The values should update in the app within 5 seconds. If this does not work, the battery may be flat.

The maximum tyre pressure that can be set in the App is 8.0 bar (116 PSI, 800 kPa). Please note that the pressure can increase by approx. 0.5 bar while driving.

The maximum temperature that can be set in the App is 80 degrees Celsius (176 Fahrenheit). Please note that the tyre temperature can rise up to 25 degrees Celsius above the ambient temperature while driving.

In principle 2 years. If you drive a lot, the sensors will emit a signal more often and the battery will run out more quickly. Therefore, always bring spare batteries with you.

It may happen that the rubber sealing ring of the E-Pressure gets stuck to the valve. Pay attention to this when replacing the module battery. These rings may also have dried out.

The type of battery is: CR1632.


That is right! We will get you a whole new nose wheel when you buy the E-Load. That is where we put the sensors. This ensures that you can already see the current ball pressure when packing the caravan.

You replace the entire nose wheel for our E-Load. You can easily do this yourself, or in case of doubt, have it done by a dealer.

The value in the app is the actual ball pressure on the tow bar, this is automatically converted using the calibration values and the weight on the nose wheel. Just make sure that the calibration values are correct.

In case of wrong ball pressure, check the calibration values in the app (distance nose wheel to axle of the caravan).
When measuring the ball pressure, make sure that the caravan is level and has is the same angle as when driving. This means that the drawbar must be placed at the height of the tow bar. Test whether the battery is still energized. You can check if the LED around the on/off button lights up when you press the button. The E-Load is accurate to ± 5 kg.

To save battery life, an on/off button is mounted on the module. Each time this power button is pressed, a LED lights up and the battery will be activated for 5 minutes.

The type of battery is: CR2450.


When calibrating the E-Level, make sure that the caravan/motorhome is on a flat, stable surface.

In the case of a motorhome, the E-Level can be calibrated by gently lifting the side of the E-Connect pointing towards the nose of the motorhome to simulate the front of the vehicle going up.

The E-Level is accurate to 0.1 degree. However, it is important that the E-Connect is properly mounted and cannot move. The E-Level is measured in the E-Connect.

You can do this in the E-Level module in the app. Click on Settings at the bottom and click on the button to the right of ‘Reverse direction E-Level’.

Check the length and width of your vehicle in ‘E-Level settings’.

The E-Level is directly connected to the battery of the camping vehicle via the E-Connect. Therefore no battery is needed.


You can install the E-Switch module very easily by following our step-by-step plan.

Step 1: Read the manual carefully.
Step 2: Remove the pull tag from the battery to activate it and paste the modules with the supplied 3M double sided tape where you want to place them.
Step 3: Scan the included QR-Code and follow the steps in the App.

Tip: First insert all the sensors and then calibrate them.

The module can be used e.g. on the door, a window, the roof hatch, the refrigerator or any other location that can be closed with a drawer or door. If a door is still open while driving, you will receive a warning on your phone.

The modules are packed per 2. A maximum of 5 pairs of E-Switch modules can be added (10 sensors).

Notifications will only be send when driving. When standing still, you can see on the screen whether something is open. If nothing happens, check whether the batteries have enough power. The green LED on the sensor is a good indicator for this.

The E-Switch communicates via Bluetooth with the E-Connect and your smartphone. Therefore, you can only read the current values within a radius of approx. 10 m around the caravan.

The battery type is: CR2032


You can install the E-Waterlevel module very easily by following our step-by-step plan.

Step 1: Read the manual carefully.
Step 2: Customize the E-Waterlevel if necessary and drill a Ø56mm diameter hole in the water tank or the cap of the water tank. Make sure you use safety equipment (goggles, gloves, etc.) to prevent injury.
Step 3: Remove the pull tag from the battery to activate it.
Step 4: Scan the supplied QR-Code and follow the steps in the App.

This is possible because the E-Waterlevel pins can be shortened. Do not forget to indicate the correct length of the pins and the volume of the water tank in the calibration menu.

The E-Waterlevel can be used in any fresh water tank. The maximum measuring depth is 41 cm. If your tank is deeper, the water between the bottom of the tank and the bottom of the pins cannot be measured.

If possible, make a Ø56mm hole in the cap of the water tank. If this is not possible, drill a hole at the top of the water tank. Make sure you use safety equipment (goggles, gloves, etc.) to prevent injury.

Currently, this functionality of the product is not yet officially supported.

The type of battery is: CR2032.


You can install the E-Gaslevel module very easily by following our step-by-step plan.

Step 1: Read the manual carefully.
Step 2: Place the E-Gaslevel at the bottom of the gas tank, in the middle.
Step 3: Press the green button 5 times to activate the module.
Step 4: Scan the included QR-Code and follow the steps in the App.

Attention: if the black silicone rubber is damaged, the module will become unusable.

The module can only read the gas level when the bottle is upright and the gas in the tank has settled down. This can take 5 to 10 minutes. Make sure that the gas cylinder is clean, undamaged and free of rust at the location where the module touches the cylinder.

The module can be used on most steel and aluminium gas cylinders. A list of cylinders and those we have tested can be found on our website. The system does not work on plastic cylinders or cylinders with a float.
For aluminium bottles, an adapter is necessary. This can be purchased from our webshop.

In the app, the most commonly used types of gas cylinders of various brands are preprogrammed. If your type of gas cylinder is not listed, please contact us.

To do this, open the module at the back and remove the battery. This will reset the system. Should the app still not update after the battery has been placed back, the battery probably needs to be replaced. Be careful not to damage the black silicone rubber. This makes the module unusable.

It can be placed on the neck of the bottle to remind the user to remove the E-Gaslevel as soon as the gas bottle is handed in.

The type of battery is: CR2032

A maximum of 5 E-Gaslevel modules can be added in 1 app.


You can install the E-Temperature module very easily by following our step-by-step plan.

Step 1: Read the manual carefully.
Step 2: Place the E-Temperature where you want to measure the temperature, for example in the refrigerator.
Step 3: Scan the supplied QR-Code and follow the steps in the App.

Do not forget to activate the sensor by means of the on/off button if you want to be able to read the values. To do so, press and hold the button for 3 seconds.

The E-Temperature works between -20 and +60 degrees Celsius.

If the E-Temperature is used in cold conditions (refrigerator, freezer, in winter, etc.), it can shorten the battery life. If the temperature falls below -20 degrees Celsius, the battery must be replaced.

Press and hold the button on the back for 3 seconds and the LED will blink green (now the sensor is on) or red (now the sensor is off).
It is advisable to turn the sensor off to save battery power. Do this, for example, when the camping vehicle is temporarily not used.

A maximum of 5 E-Temperature modules can be added in 1 app

The type of battery is: CR2477 or CR2477H.


The E-Volt indicates the voltage of the battery to which the E-Connect is connected.

The battery percentage depends on the lower and upper limit indicated in the settings. If the upper limit is 15V and the lower limit is 10.8V (the lowest possible value), the app will indicate half empty at 12V.

The battery voltage may depend on the type and status of other connected devices.

The E-Volt is connected directly to the battery of the camping vehicle via the E-Connect. Therefore no battery is required.


COVID-19 maatregelen

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