Libelium

http://www.libelium.com/

https://www.libelium.com/libeliumworld/success-stories/smart-city-urban-resilience-smart-environment/

Libelium manufactures an array of environmental sensing products and communication gateways. Wildfire detection is one of the possible use cases for their sensor and cloud platform. Their outdoor sensors are powered from solar panels and rechargeable batteries. Their communication technology includes LoRaWAN, Bluetooth, Wi-Fi, 868 MHz radio and others.