This document provides a review of internet of things (IoT) based remote monitoring of temperature and humidity. It discusses wireless sensor networks (WSNs) that can gather temperature and humidity data from remote locations and transmit it to a central station. The document reviews existing research on WSN systems for environmental monitoring and identifies gaps such as high costs due to technologies like Xbee connectivity, large microcontroller sizes, and lack of smart power utilization and low power systems. It proposes future research objectives like developing a low-cost system using WiFi technology, implementing mobile alerts and live data portals, and improving power management to increase battery life. The document concludes there is significant scope for future work to address issues in previous approaches and develop more cost