The project aims to provide sustainable, affordable and efficient forest safety monitoring. Each sensor used was calibrated. The sensors used are PIR sensor for human presence detection, sound sensor for high frequency (>90dB) noise level from illegal logging, and gas sensor for smoke from forest fires or burning. Signals from deployed unit are sent to phone application via Bluetooth. Standardized system field testing shows that TARZAN is effective for early detection of unwanted human activity, as well as illegal logging, burning, and forest fire detection.