Advice needed: STM32L series for "Smart Cabin" environmental monitoring (High Temp)?

[portaking]

Hi community,

I am primarily a software developer (Web/React) but I am starting a hardware prototype for my manufacturing business (http://portaking.pk/).

The Project: We build portable site offices and containers. I want to create a "Smart Cabin" module that monitors:

1. Internal Temperature & Humidity (It gets to 45°C+ inside these metal units).

2. Door Open/Close status.

3. Sends data via LoRaWAN or WiFi.

The Question: Since these units are often off-grid and run on batteries/solar, I need the lowest power consumption possible.

Is the STM32L0 series sufficient for handling basic sensor data + a LoRa module, or should I step up to the STM32L4 for better processing power?

Also, if anyone has recommendations for an ST temperature sensor that is robust enough for industrial environments, please let me know.

Thanks!