Sorry for the late response. Busy preparing retirement and had a long vacation...

The php I use:

<?php
# ==========================================================
# Bron: http://192.168.1.11:9980/ozwcp/poll.xml
#
$versie = '1.06 dd 10-08-2021';
#
# Doel: Domotics V2021.1 database
# Via : json ...

Asustor | Domoticz 2020.2 (b63341bc0)| Aeotec USB (running 1.6) | MCOHome A8-9

Issues:
- VOC sensor doesn't show up in Domoticz; but it is in OpenZwave Control Panel.
- VOC sensor displays its value in the CO2 device (range 0.000 - 64.000)
- PIR sensor 0 or 1 as floating value. Result error in ...

In this topic a similar problem: viewtopic.php?f=24&t=35726&p=270798#p270798
One sensors (VOC) don't work/appear in the devices tab. Is there a pattern?

In this topic a similar problem: viewtopic.php?t=33377
Two sensors (movement and VOC) do not work/appear in the devices tab. Is there a pattern?

Edit: added a workaround in viewtopic.php?p=272565#p272565

Air Quality Sensor / Luftgütesensor Z-Wave Plus
Art.no: 700088
EAN: 42 600 127 112 64
Size: (BxHxT): 68 x 68 x 17 mm

Supplier:
EUROtronic

Website:
https://eurotronic.org/produkte/sensoren/luftguetesensor/

Function:
The product provides comprehensive information on indoor air quality ...

I have the same problem. Sensor added 6 devices but VOC was not there.

The email to EUROtronic with all the details was answered:
"vielen Dank, dass Sie sich für unseren Luftgütesensor Z-Wave Plus entschieden haben.
Das Kommunikationsprotokoll wurde nach den strengen Richtlinien der Z-Wave ...