First use
Pair the Metrel installation test instrument with your Android device
- Turn on the Metrel installation test instrument
- Go to Settings on your Android
- Scan for Bluetooth available devices on your Android device
- Select the correct instrument for pairing
- Use the default PIN 1234 to pair
![](/support/confluence/mpd/files/en/5767190/5767180/1/1580370439000/Snapshot+-+3.png)
Enter license key
- Open aMESM
- Select "Settings"
![](/support/confluence/mpd/files/en/5767190/5767181/1/1580370439000/Snapshot+-+4.png)
3. Select "Device Activation"
![](/support/confluence/mpd/files/en/5767190/5767182/1/1580370439000/Snapshot+-+5.png)
- 4. Click on the key button
![](/support/confluence/mpd/files/en/5767190/5767186/1/1580370439000/Screenshot_20200130-084017_aMESM.jpg)
5, Select the Barcode button and scan your license a.k.a QR code in the email received message/printed page or enter manually the license
![](/support/confluence/mpd/files/en/5767190/5767189/1/1580370439000/Screenshot_20200130-084130_aMESM.jpg)
6. Click "Done"
7. You should now be able to connect your Metrel installation tester with the Android App aMESM.
aMESM initial settings
- Open aMESM
- Select "Settings"
![](/support/confluence/mpd/files/en/5767190/5767182/1/1580370439000/Snapshot+-+5.png)
3. Select "Instrument/adapter selection"
- Choose appropriate installation tester
- Click on "Select a device to connect" and choose the one with your serial number
- Click "OK"
4. Select "Scope of work"
- Select your workscope
- Example: "Safety of LV installations" → EU installations
5. Go back
![](/support/confluence/mpd/files/en/5767190/5767185/1/1580370439000/Snapshot+-+9.png)