Some considerations regarding pressure sensors:
If the use of a SIM card is required, the Dragino (see above) appears to be a reasonable solution.
However, if factors such as long-term availability, technical support, and overall reliability are prioritized — especially in a changing global context — it might be advisable to consider manufacturers based within the EU or other stable regions. Examples include Siemens (QBE Series Pressure Sensor), SICK, or similar suppliers. The drawback is that these sensors do not feature built-in SIM connectivity and are not inherently wireless, as they are primarily designed for fixed installations. Nevertheless, to my understanding, they can be made wireless by integrating suitable adapters or communication modules.
The SenseCAP LoRaWAN Barometric Pressure Sensor, on the other hand, is a fully wireless LoRaWAN device designed for deployment in remote or hard-to-access environments.
If redundancy is a key requirement, this can be achieved by deploying multiple gateways (in a star topology) or, in the case of the Siemens sensor, by creating a mesh network using WirelessHART modules. In both wired and wireless configurations, redundancy can also be ensured by installing dual sensors at critical points and/or using secondary gateways. Additionally, redundant power supplies may be considered for mission-critical applications.
These are, however, preliminary reflections, as the specific conditions, requirements, and installation environment have not yet been disclosed.
Regards,
Julius Kiirikki & Nathali Perswalld Filubelli
