IoT system for peatland monitoring using LoRa technology as a wireless communication between sensor (i.e. piezometer) on the ground and Gateway. The model is optimised to a peatland forest scenario, where the foliage and terrain is unique and Line of Sight (LoS) cannot be guaranteed. LoRa is known as a wireless communication technology for IoT, but its data rate and bandwidth can be compromised in a dense forest scenario. This study has tackled this issue by adapting the transmission parameters to the propagation model of the peatland forest.